Analysis
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max time kernel
21s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
22-11-2020 00:03
Static task
static1
Behavioral task
behavioral1
Sample
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe
Resource
win10v20201028
General
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Target
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe
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Size
118KB
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MD5
0e285f30f30dedd812295d2408f4b84c
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SHA1
24e8a7a0b9fdf929e6cc4b52b0470bf4f7b6f244
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SHA256
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95
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SHA512
0e89d41a5bd1389d74e661e8f9d3efedff589c2e64f444971e349436a9b6f191f0a0d6017a1e7c28d33be382600b08d00f9496ebdfcf839943d559d1a10a8503
Malware Config
Extracted
C:\b5904190-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/FDC946F48489C9D9
http://decryptor.cc/FDC946F48489C9D9
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Modifies extensions of user files 3 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exedescription ioc process File renamed C:\Users\Admin\Pictures\CompressConfirm.tif => \??\c:\users\admin\pictures\CompressConfirm.tif.b5904190 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File renamed C:\Users\Admin\Pictures\RenameDebug.raw => \??\c:\users\admin\pictures\RenameDebug.raw.b5904190 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File renamed C:\Users\Admin\Pictures\WriteExport.crw => \??\c:\users\admin\pictures\WriteExport.crw.b5904190 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exedescription ioc process File opened (read-only) \??\G: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\O: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\W: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\A: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\B: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\E: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\X: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\Z: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\I: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\J: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\Q: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\N: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\R: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\T: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\U: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\Y: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\F: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\K: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\L: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\S: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\V: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\D: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\H: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\M: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened (read-only) \??\P: d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe -
Modifies service 2 TTPs 5 IoCs
Processes:
vssvc.exedescription ioc process 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 Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe 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\COM+ REGDB Writer vssvc.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ly3274f.bmp" d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe -
Drops file in Program Files directory 22 IoCs
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exedescription ioc process File opened for modification \??\c:\program files\RepairPush.iso d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\UndoExit.dwfx d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\WriteLock.jtx d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\TraceGroup.ppt d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\AssertMove.aifc d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\PushSelect.contact d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\RequestResolve.txt d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\CopyClear.tif d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\FindDisconnect.edrwx d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\ResizeStart.rm d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\RevokeRestart.pot d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\UninstallUnregister.htm d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File created \??\c:\program files (x86)\b5904190-readme.txt d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\AddRemove.dxf d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\ClearProtect.asp d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\WriteRequest.AAC d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\NewRegister.dib d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\ProtectUse.001 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\WatchEnter.mhtml d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File created \??\c:\program files\b5904190-readme.txt d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\ConvertToRegister.xml d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe File opened for modification \??\c:\program files\JoinApprove.mpeg d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exepid process 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exevssvc.exedescription pid process Token: SeDebugPrivilege 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe Token: SeTakeOwnershipPrivilege 3992 d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe Token: SeBackupPrivilege 1000 vssvc.exe Token: SeRestorePrivilege 1000 vssvc.exe Token: SeAuditPrivilege 1000 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe"C:\Users\Admin\AppData\Local\Temp\d91f951bdcf35012ac6b47c28cf32ec143e4269243d8c229f6cb326fd343df95.bin.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken