Trojan.MSIL.Agent.SKF
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.MSIL.Agent.SKF |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
67932be1e6a0ea14b41b02983d5074d6
SHA1:
073478638f8409adf63c5174c48233b3b21d882a
File Size:
237.65 KB, 237654 bytes
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MD5:
558a71f1b983707f15c40a17a3808d44
SHA1:
94fb95ca54c3e5f2d303cb7405cbbb58480460c0
SHA256:
2C6FB0DE044B31B81257DC0EB0196DC76C6566C62789D499DF0B4CD299DA8CA6
File Size:
16.90 KB, 16896 bytes
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MD5:
0131ba17bdbe44faed12d127d2b345ff
SHA1:
0e3e4c1b4873a24f0b32b36e591b61d36a14724f
SHA256:
9459A434BC9C7EEBCD626BD94D685692D4E8ADA335F04DA452FAE9C83B6938CF
File Size:
16.90 KB, 16896 bytes
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MD5:
6b88041630bd510ec3777cb3a4e1a599
SHA1:
c43925574d78fa6c1ef8e81f475b3ed30b323468
SHA256:
3EEB4BF51B0EA73E2905792918261994BAB55C13409E63FE46323CB0609B5D59
File Size:
235.51 KB, 235509 bytes
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MD5:
f5ffb2b3a94275f6dc16914a535cb57a
SHA1:
15d56bf1c6b9442c69016b1b8bfe15162af99f26
SHA256:
A2C6C5219064BADB94353F479AC88C363CBFDA9BAEB8F2333C55E7F7FE061400
File Size:
16.90 KB, 16896 bytes
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MD5:
36f8bd0fc950c3edfb62bb995136389c
SHA1:
df6108a90416b21f0023e2638cda4fbc0131c27b
SHA256:
45DD96FE13E7FF3823D93167DBC976E3D15E9778933C052B928BFD63C5412098
File Size:
237.65 KB, 237649 bytes
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MD5:
a7cf0758b52ce867063949096af7c101
SHA1:
7bfef938f55b8f2fb690e1b6b050c81b54588d65
SHA256:
E42C9A697686A844628547D3CE696667F688C433157257F2CD4005D5D654F5CE
File Size:
16.90 KB, 16896 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 |
| File Description |
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| File Version |
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| Internal Name |
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| Legal Copyright |
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| Original Filename |
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| Product Name |
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| Product Version |
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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.| Total Blocks: | 32 |
|---|---|
| Potentially Malicious Blocks: | 19 |
| Whitelisted Blocks: | 13 |
| Unknown Blocks: | 0 |
Visual Map
0
0
x
0
x
x
0
x
x
0
x
x
x
x
0
0
0
0
x
0
x
x
x
x
x
x
x
0
x
0
x
0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
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.SKF
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 |
|---|---|
| c:\users\user\appdata\local\temp\nsk4ac.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\locating.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\locating.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\locating.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\locating.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
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| c:\users\user\appdata\local\temp\nsk4ac.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsk4ac.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\spiff.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\spiff.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\spiff.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\spiff.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nssd550.tmp\webview2loader.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\dissembled.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\dissembled.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\dissembled.exe.config | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\dissembled.exe.config | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.core.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.core.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.winforms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.winforms.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.wpf.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\microsoft.web.webview2.wpf.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsx519c.tmp\webview2loader.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsx519c.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\Hqavherc\AppData\Local\Temp\nssD550.tmp\spiff.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Hqavherc\AppData\Local\Temp\nssD550.tmp\spiff.exe \??\C:\Users\Hqavherc\AppData\Local\Temp\nssD550.tmp\ | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Mtiyoxrx\AppData\Local\Temp\nsx519C.tmp\dissembled.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Mtiyoxrx\AppData\Local\Temp\nsx519C.tmp\dissembled.exe \??\C:\Users\Mtiyoxrx\AppData\Local\Temp\nsx519C.tmp\ | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Program Files (x86)\Microsoft\EdgeUpdate\1.3.205.9 \??\C:\Windows\SystemTemp\b1a39cca-eadf-4949-a384-a0ef6a3b3fd2.tmp \ | 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 |
|---|---|
| Anti Debug |
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| User Data Access |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
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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\Hqavherc\AppData\Local\Temp\nssD550.tmp\Spiff.exe ""
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C:\Users\Mtiyoxrx\AppData\Local\Temp\nsx519C.tmp\Dissembled.exe ""
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C:\Users\Hrlwkvwn\AppData\Local\Temp\nsk4AC.tmp\Locating.exe ""
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