Analysis
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max time kernel
24s -
max time network
31s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
17-06-2021 04:43
Static task
static1
Behavioral task
behavioral1
Sample
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe
Resource
win10v20210410
General
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Target
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe
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Size
122KB
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MD5
c9dbde6da0b2102b761351479af24b70
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SHA1
0c612135ba42a42f2516bdc255e7c87fa1c499a7
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SHA256
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd
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SHA512
6a009a0f164af8059a127dc2dd5460f1687bda4ae5d7b8c171a2d922009797ce00fa214b57e24850ab2be92b1bbfd22225a2a95d3c75fba7be92cd13d1a42fad
Malware Config
Extracted
C:\2mzgobx5t4-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/793ABDB05545D8AB
http://decoder.re/793ABDB05545D8AB
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Modifies Windows Firewall 1 TTPs
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Modifies extensions of user files 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process File renamed C:\Users\Admin\Pictures\MountEdit.tif => \??\c:\users\admin\pictures\MountEdit.tif.2mzgobx5t4 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\MountRead.tif => \??\c:\users\admin\pictures\MountRead.tif.2mzgobx5t4 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\SaveRequest.raw => \??\c:\users\admin\pictures\SaveRequest.raw.2mzgobx5t4 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\users\admin\pictures\StartUninstall.tiff cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\StartUninstall.tiff => \??\c:\users\admin\pictures\StartUninstall.tiff.2mzgobx5t4 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\ConvertFromUpdate.raw => \??\c:\users\admin\pictures\ConvertFromUpdate.raw.2mzgobx5t4 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\t32mMaunsR = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe" cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process File opened (read-only) \??\B: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\K: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\L: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\N: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\O: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\P: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\F: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\W: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Q: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\R: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\T: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\U: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Y: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Z: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\M: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\S: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\A: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\E: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\G: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\H: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\I: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\J: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\V: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\X: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\D: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5uar1l6.bmp" cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Drops file in Program Files directory 34 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process File opened for modification \??\c:\program files\BackupRestore.doc cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\PushUnlock.cfg cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UseDebug.vsdm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files (x86)\tmp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\EnableApprove.gif cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\InitializeUnregister.emf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\InvokeClear.svg cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\PingResize.jfif cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RestoreTest.iso cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\WritePublish.jtx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files\2mzgobx5t4-readme.txt cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\CloseSplit.ppsm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\GrantUnlock.zip cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RedoInstall.vssm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ReadUninstall.xht cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\StopMerge.7z cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\WaitLimit.mp2 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\WatchDebug.wav cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ConnectLimit.rle cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\EnterUninstall.eprtx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UninstallCheckpoint.TS cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\InvokeEnable.dxf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\NewPush.vssx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\StepAdd.ini cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files\tmp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files (x86)\2mzgobx5t4-readme.txt cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\DisableComplete.vsdx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\GroupRemove.wmx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\InstallExit.au3 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\MeasureSwitch.ex_ cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ProtectUnregister.dib cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\PushHide.png cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RedoResolve.jpe cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RevokeMove.wps cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exepid process 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exevssvc.exedescription pid process Token: SeDebugPrivilege 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe Token: SeTakeOwnershipPrivilege 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe Token: SeBackupPrivilege 3992 vssvc.exe Token: SeRestorePrivilege 3992 vssvc.exe Token: SeAuditPrivilege 3992 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription pid process target process PID 3980 wrote to memory of 4012 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe netsh.exe PID 3980 wrote to memory of 4012 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe netsh.exe PID 3980 wrote to memory of 4012 3980 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe"C:\Users\Admin\AppData\Local\Temp\cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3980 -
C:\Windows\SysWOW64\netsh.exenetsh advfirewall firewall set rule group="Network Discovery" new enable=Yes2⤵PID:4012
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2744
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3992
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/4012-114-0x0000000000000000-mapping.dmp