Trojan.MSIL.Krypt.XCO
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.XCO |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
49517763ac186fb78bfdfb3cf7426150
SHA1:
cb449d2285effd6a467ef5ff0b2a6fa6a3ccc194
File Size:
36.35 KB, 36352 bytes
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MD5:
27cc12d9226b3ea5369446060599a8df
SHA1:
6440ed4145a3ddbea3864b808fc34c2f9209b2ba
SHA256:
9DBC4D3077B8B2F6E2156707C9A230E96E8CE3C18DD45C455804165D9AC83D0B
File Size:
247.33 KB, 247332 bytes
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MD5:
72a601dce1c05344630d66a90dc352e1
SHA1:
73db6d3d15e0a1fd86e59da80e2e50b7f69094a6
SHA256:
5228F2C6E9B686B4CCF0A2842476EBF1E01FDD2B535EBE1750D45E7257DEB2FC
File Size:
247.31 KB, 247312 bytes
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MD5:
dd256f90da087f61afdfc5fdbedf29ab
SHA1:
586d7dcc8bb54271bc5307b34989494d23dc20fc
SHA256:
E3D4FE13074374D1A432D040009CB01A428E1489E12C85C2A013213C887D885F
File Size:
247.31 KB, 247314 bytes
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MD5:
ef0454f1680b9e1590fec66c41d8953b
SHA1:
8f30e45e40b500a5095aef00d46b00be23f4cd75
SHA256:
C9424A579CF3E2CDEDCA5F64CC095260F946F0BC5A37FCD9AEA8D6AE63C5E403
File Size:
255.69 KB, 255685 bytes
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MD5:
b9d08c041bb853bb59c59e0574498cc5
SHA1:
61b0c0de8b625f782d10e345cf0a7de366c3fd76
SHA256:
7C9926D42CF22FD5C64807469E7D1053CCD3EAD891DE35331FCA0B5F4D2CDCE8
File Size:
247.45 KB, 247449 bytes
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MD5:
d3b57554d055f6d44b24195d5f045815
SHA1:
854266e4dce5294bb7adcee2c1c9ebc296f36b79
SHA256:
7AA67C7D5E9AC23A155D7066688346FCA4F8F96FB6EB1AF9F8E28FD2243F4947
File Size:
247.43 KB, 247429 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations information
- File doesn't have security information
- File is .NET application
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
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- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Assembly Version | 1.0.0.0 |
| Company Name | Choose |
| File Description | Choose |
| File Version | 1.0.0.0 |
| Internal Name | Webview.exe |
| Legal Copyright | Copyright © Choose 2024 |
| Original Filename | Webview.exe |
| Product Name | Choose |
| Product Version | 1.0.0.0 |
File Traits
- .NET
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- MSIL.Agent.SKE
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| \device\namedpipe\gmdasllogger | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\gelfand.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\gelfand.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\gelfand.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\gelfand.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
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| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsc598e.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\getty.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\getty.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\getty.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\getty.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nscc0fa.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\friel.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\friel.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\friel.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\friel.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsq5c0c.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\mcentire.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\mcentire.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\mcentire.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\mcentire.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsrfa7b.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\mutilated.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\mutilated.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\mutilated.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\mutilated.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsva469.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\braham.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\braham.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\braham.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\braham.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nszaddf.tmp\webview2loader.dll | Synchronize,Write Attributes |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Ilmnhwaw\AppData\Local\Temp\nsq5C0C.tmp\friel.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Ilmnhwaw\AppData\Local\Temp\nsq5C0C.tmp\friel.exe \??\C:\Users\Ilmnhwaw\AppData\Local\Temp\nsq5C0C.tmp\ | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Gpvanapn\AppData\Local\Temp\nsrFA7B.tmp\mcentire.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Gpvanapn\AppData\Local\Temp\nsrFA7B.tmp\mcentire.exe \??\C:\Users\Gpvanapn\AppData\Local\Temp\nsrFA7B.tmp\ | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Windows\SystemTemp\77e37ce0-8214-4414-aced-551c5ae204d7.tmp \??\C:\Windows\SystemTemp\e28eadcf-6ab0-4d8c-8821-7ce9a6aba1 | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | *1\??\C:\Windows\SystemTemp\MicrosoftEdgeUpdate.exe.old122e4 *1\??\C:\Windows\SystemTemp\CopilotUpdate.exe.old12352 *1\??\C:\P | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| User Data Access |
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| Anti Debug |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\Users\Ilmnhwaw\AppData\Local\Temp\nsq5C0C.tmp\Friel.exe ""
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C:\Users\Gpvanapn\AppData\Local\Temp\nsrFA7B.tmp\Mcentire.exe ""
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C:\Users\Xiqyarqz\AppData\Local\Temp\nsc598E.tmp\Gelfand.exe ""
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C:\Users\Isfehygb\AppData\Local\Temp\nsvA469.tmp\Mutilated.exe ""
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C:\Users\Izfbaghi\AppData\Local\Temp\nscC0FA.tmp\Getty.exe ""
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C:\Users\Ueegeupv\AppData\Local\Temp\nszADDF.tmp\Braham.exe ""
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