Analysis
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max time kernel
139s -
max time network
157s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
17-06-2021 04:59
Static task
static1
Behavioral task
behavioral1
Sample
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe
Resource
win10v20210408
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:\x2yx0-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/E18E5A89CD614942
http://decoder.re/E18E5A89CD614942
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 9 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process File renamed C:\Users\Admin\Pictures\ApproveHide.crw => \??\c:\users\admin\pictures\ApproveHide.crw.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\InvokeDismount.crw => \??\c:\users\admin\pictures\InvokeDismount.crw.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\MoveCompare.tif => \??\c:\users\admin\pictures\MoveCompare.tif.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\RestorePublish.tiff => \??\c:\users\admin\pictures\RestorePublish.tiff.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\UnpublishInstall.crw => \??\c:\users\admin\pictures\UnpublishInstall.crw.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\MountUpdate.png => \??\c:\users\admin\pictures\MountUpdate.png.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\PingCompress.png => \??\c:\users\admin\pictures\PingCompress.png.x2yx0 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\users\admin\pictures\RestorePublish.tiff cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File renamed C:\Users\Admin\Pictures\StepClose.tif => \??\c:\users\admin\pictures\StepClose.tif.x2yx0 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) \??\R: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\W: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Y: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\L: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\N: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Q: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\I: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\O: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\U: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\K: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\M: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\P: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\T: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\V: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\E: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\H: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\J: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\Z: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\D: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\G: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\S: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\X: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\A: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\B: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened (read-only) \??\F: cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\s5z18.bmp" cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Drops file in Program Files directory 33 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription ioc process File opened for modification \??\c:\program files\SearchLimit.vbe cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\SelectEdit.mid cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UseResume.m1v cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UnblockInvoke.temp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files (x86)\x2yx0-readme.txt cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\DebugStep.3gp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\SelectUnlock.xltx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\SendClear.xltm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ShowSet.dotx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\TraceSet.wmf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files (x86)\tmp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ExitTest.mpp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ExportMount.pot cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RequestConvert.dwg cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UpdateConvert.pdf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files\x2yx0-readme.txt cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\FindAssert.vsw cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\LimitSync.midi cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RestoreClose.xlsb cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UnlockOpen.bmp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\CompleteUnpublish.vssm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\UnregisterShow.dotx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File created \??\c:\program files\tmp cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\InitializeRemove.txt cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\ReceiveConvertTo.wmf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\RedoUninstall.xltx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\GetOut.vsx cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\FindAdd.wm cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\HideRestart.tif cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\MeasureUnlock.asf cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\MoveEdit.mpeg3 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\OutCompress.jfif cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe File opened for modification \??\c:\program files\SuspendMount.pptm 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 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exevssvc.exedescription pid process Token: SeDebugPrivilege 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe Token: SeTakeOwnershipPrivilege 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe Token: SeBackupPrivilege 3568 vssvc.exe Token: SeRestorePrivilege 3568 vssvc.exe Token: SeAuditPrivilege 3568 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exedescription pid process target process PID 804 wrote to memory of 2876 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe netsh.exe PID 804 wrote to memory of 2876 804 cb4af8d6d57163b0322bd033b36379f805bdb59ec550049ea568cc0a7dfe52cd.exe netsh.exe PID 804 wrote to memory of 2876 804 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:804 -
C:\Windows\SysWOW64\netsh.exenetsh advfirewall firewall set rule group="Network Discovery" new enable=Yes2⤵PID:2876
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:184
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3568
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/2876-114-0x0000000000000000-mapping.dmp