Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
18-01-2021 15:11
Static task
static1
Behavioral task
behavioral1
Sample
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe
Resource
win10v20201028
General
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Target
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe
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Size
118KB
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MD5
7944d5be19dfc5a4e4e2696ecaeb0e80
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SHA1
72c88212ed6971b33f9684d0edb49e0d372521f8
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SHA256
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0
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SHA512
669ada7f64c0117eb2086ec9916b795c0141b3560cab80a62990b12b53f0d781620a4dc511e72bf87631118eadf34ecaa71661c1556b3464b0659f36d2ccbcc4
Malware Config
Extracted
C:\wwj37797-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/DB3333A7B29ED2E8
http://decryptor.cc/DB3333A7B29ED2E8
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 1 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exedescription ioc process File renamed C:\Users\Admin\Pictures\RestoreClose.png => \??\c:\users\admin\pictures\RestoreClose.png.wwj37797 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1E8NAmhfRO = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe" b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exedescription ioc process File opened (read-only) \??\E: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\L: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\N: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\P: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\W: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\Z: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\F: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\R: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\T: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\B: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\G: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\H: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\K: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\M: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\V: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\U: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\X: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\A: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\I: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\J: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\O: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\Q: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\S: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\Y: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened (read-only) \??\D: b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.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\\3op7f7.bmp" b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Drops file in Program Files directory 21 IoCs
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exedescription ioc process File opened for modification \??\c:\program files\GrantRead.dotm b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\LockConvertTo.m4v b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\MoveRepair.ADTS b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\OutMeasure.xps b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\SubmitCopy.rle b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\SubmitWatch.aifc b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\CompressExit.ogg b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\ConvertEdit.mpg b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\TestProtect.wmf b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\OptimizeWait.cr2 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\RenameRevoke.vsx b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\EnableRepair.wps b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\InstallNew.m4a b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\SubmitSuspend.htm b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\SuspendImport.vstx b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\TraceLimit.m4v b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\CopyClose.odp b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\EditSuspend.ex_ b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\UnpublishStop.midi b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\GetSearch.xlt b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe File opened for modification \??\c:\program files\SelectUpdate.wmf b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exepid process 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exevssvc.exedescription pid process Token: SeDebugPrivilege 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe Token: SeTakeOwnershipPrivilege 4712 b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe Token: SeBackupPrivilege 3272 vssvc.exe Token: SeRestorePrivilege 3272 vssvc.exe Token: SeAuditPrivilege 3272 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.exe"C:\Users\Admin\AppData\Local\Temp\b16b7acfd8780bf4074cd156075277b5abfdff56ec68085a9c0d504a892477b0.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
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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⤵
- Suspicious use of AdjustPrivilegeToken