Trojan.Kryptik.NRT
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.Kryptik.NRT |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
3a014eb7f2178de164984a352ebea87c
SHA1:
23d0f82cc478faab39c7ae18cf3488b0d3e6a29d
SHA256:
2399672C48839929E4DD63C5107D1751128F74B30EA82DCA873A8C27ED591C13
File Size:
2.28 MB, 2284032 bytes
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MD5:
6190846393cd98aa2f51c19c348e2d12
SHA1:
087ee790534c370510666abaf13da923e6367a2a
SHA256:
57285041D8A1B02E1A9ED941AF255404BC2D364F5AB0109955B87B2C84580016
File Size:
1.44 MB, 1442816 bytes
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MD5:
7a51090109bddaa4a6810c77606e1dd2
SHA1:
b9c3f2f7df5c2e689bb60f5cff33524ae723f7b5
SHA256:
918342BE19764E845981D6967276CAB1A52FD2E904E5C37908A81CCF45D0E017
File Size:
1.84 MB, 1844224 bytes
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MD5:
7bd1461aac032ef68d484cfe94c3a372
SHA1:
990e4479f1d570a94294accc29a96387d9c6358a
SHA256:
C9879920E195F39BADEAF937596CE40BBED7AFB85499CA5C1ED5A240C7B69F12
File Size:
854.57 KB, 854568 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 resources
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
Show More
- 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)
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 |
|---|---|
| Company Name | Microsoft Corporation |
| File Description | Windows® installer |
| File Version | 5.0.19041.4651 (WinBuild.160101.0800) |
| Internal Name | msiexec |
| Legal Copyright | © Microsoft Corporation. All rights reserved. |
| Original Filename | msiexec.exe |
| Product Name | Windows Installer - Unicode |
| Product Version | 5.0.19041.4651 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| NVIDIA Corporation | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 | Hash Mismatch |
File Traits
- HighEntropy
- Installer Manifest
- Installer Version
- No Version Info
- 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: | 1,194 |
|---|---|
| Potentially Malicious Blocks: | 342 |
| Whitelisted Blocks: | 852 |
| Unknown Blocks: | 0 |
Visual Map
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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.- Kryptik.NRT
- Kryptik.NRU
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\4781726940\fwkdagwk.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
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 |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ༭⨋ǜ | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | 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 |
|---|---|
| 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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| Syscall Use |
Show More
56 additional items are not displayed above. |
| Process Terminate |
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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\Yfopmcmf\AppData\Local\Temp\4781726940\Fwkdagwk.exe
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