Trojan.Nekark.I
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.Nekark.I |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
218fff0e09b95827ec39e64f20aa312c
SHA1:
0cb86935e5438efb584b812926ea52623171344f
File Size:
364.54 KB, 364544 bytes
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MD5:
7a6c8d496941a5ca26085509ef0b4e60
SHA1:
ea088506c51c0764cb9488c2d2895f0331997b07
File Size:
368.64 KB, 368640 bytes
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MD5:
40b6f612fd144358c56ce77de8d0f5f4
SHA1:
f6375f1a5fe74ca742bbdbf9857a89560e7d344f
File Size:
365.06 KB, 365056 bytes
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MD5:
62d76e6a8252a9916547a194e980c093
SHA1:
25d56c7544edde7230941168580c5e2e526e6c51
SHA256:
B2E481882E72A0F03464AF6CB4CF61D45C4023225B658202A5DAB853A3B1A46C
File Size:
583.21 KB, 583208 bytes
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MD5:
289f7175e2e59f5dc8d5c2a8416131eb
SHA1:
061dd5ef0fd2af02a97260dc70bba14baa8d5d74
SHA256:
D6BAE945450A2ADE2026F4618A121F1F0A40F3CBE45BD64447BA8CD9B912B35C
File Size:
367.62 KB, 367616 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security information
- File is 64-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- 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.
File Traits
- GetConsoleWindow
- No Version Info
- x64
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: | 1,192 |
|---|---|
| Potentially Malicious Blocks: | 11 |
| Whitelisted Blocks: | 1,170 |
| Unknown Blocks: | 11 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
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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.- Agent.LFGB
- Dllinject.ODB
- Downloader.Agent.BTAB
- Downloader.GDF
- Downloader.GDG
Show More
- Downloader.JDC
- Gamehack.GAJB
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\dav rpc service | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| \device\namedpipe\pshost.133968368263296082.4404.defaultappdomain.powershell | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| \device\namedpipe\pshost.133968748157910230.5148.defaultappdomain.powershell | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| \device\namedpipe\pshost.133978078712655547.564.defaultappdomain.powershell | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| \device\namedpipe\pshost.134087438884424294.5236.defaultappdomain.powershell | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| \device\namedpipe\wkssvc | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.0.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_2b53f31j.mg1.psm1 | Generic Write,Read Attributes |
Show More
| c:\users\user\appdata\local\temp\__psscriptpolicytest_3uetfm21.ghc.psm1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_ipwo5x2f.lzd.ps1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_lqkurioc.1w1.psm1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_nf4w1ctj.sui.ps1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_oklhrc3v.ivr.ps1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_qk2oyuqb.35o.ps1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_ut0ba1lc.uwp.psm1 | Generic Write,Read 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\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | 쉪楰Ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | 뫺덺忐ǜ | 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 |
Show More
29 additional items are not displayed above. |
| User Data Access |
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| Process Shell Execute |
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| Encryption Used |
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| Other Suspicious |
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| Anti Debug |
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| Process Manipulation Evasion |
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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:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Ybokgvbj\AppData\Local\jfnzsdpnhgq'
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C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Ybokgvbj\AppData\Local\jfnzsdpnhgq'
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Pnhvgwdh\AppData\Local\avwjhypx'
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C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Pnhvgwdh\AppData\Local\avwjhypx'
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Lttejrdi\AppData\Local\eqziw'
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Show More
C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Lttejrdi\AppData\Local\eqziw'
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Zliytdfv\AppData\Local\yhqrvibnb'
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C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Zliytdfv\AppData\Local\yhqrvibnb'
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