Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
03-05-2021 18:04
Static task
static1
Behavioral task
behavioral1
Sample
329b7965_by_Libranalysis.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
329b7965_by_Libranalysis.exe
Resource
win10v20210410
General
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Target
329b7965_by_Libranalysis.exe
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Size
182KB
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MD5
329b796513db794d0548843d5e919a1e
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SHA1
7979369952d9ed389bbbc598a3899db552994a1f
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SHA256
0a471df64b677fd6608c72626444d22381f7fc20ea0165cc5b88fdad0402d32f
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SHA512
fbc1b279712ed01758ae346bf9119e3d81dd705530d664f3888a811febf6a7833183aece36cdb2b3384bb24a59eaabce129649ee866ddf812ba9caaa57ef45e0
Malware Config
Extracted
C:\81bpm4h2bi-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/9E5BFB7F58E30588
http://decryptor.cc/9E5BFB7F58E30588
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 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
329b7965_by_Libranalysis.exedescription ioc process File renamed C:\Users\Admin\Pictures\ReadEnable.tif => \??\c:\users\admin\pictures\ReadEnable.tif.81bpm4h2bi 329b7965_by_Libranalysis.exe File opened for modification \??\c:\users\admin\pictures\ReceiveWait.tiff 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\ReceiveWait.tiff => \??\c:\users\admin\pictures\ReceiveWait.tiff.81bpm4h2bi 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\RestartComplete.tif => \??\c:\users\admin\pictures\RestartComplete.tif.81bpm4h2bi 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\UnblockStep.png => \??\c:\users\admin\pictures\UnblockStep.png.81bpm4h2bi 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\CompareMerge.raw => \??\c:\users\admin\pictures\CompareMerge.raw.81bpm4h2bi 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\ExpandInitialize.tif => \??\c:\users\admin\pictures\ExpandInitialize.tif.81bpm4h2bi 329b7965_by_Libranalysis.exe File renamed C:\Users\Admin\Pictures\HideResize.raw => \??\c:\users\admin\pictures\HideResize.raw.81bpm4h2bi 329b7965_by_Libranalysis.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
329b7965_by_Libranalysis.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run 329b7965_by_Libranalysis.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\k51299BQXH = "C:\\Users\\Admin\\AppData\\Local\\Temp\\329b7965_by_Libranalysis.exe" 329b7965_by_Libranalysis.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
329b7965_by_Libranalysis.exedescription ioc process File opened (read-only) \??\Y: 329b7965_by_Libranalysis.exe File opened (read-only) \??\O: 329b7965_by_Libranalysis.exe File opened (read-only) \??\V: 329b7965_by_Libranalysis.exe File opened (read-only) \??\K: 329b7965_by_Libranalysis.exe File opened (read-only) \??\L: 329b7965_by_Libranalysis.exe File opened (read-only) \??\M: 329b7965_by_Libranalysis.exe File opened (read-only) \??\N: 329b7965_by_Libranalysis.exe File opened (read-only) \??\Q: 329b7965_by_Libranalysis.exe File opened (read-only) \??\R: 329b7965_by_Libranalysis.exe File opened (read-only) \??\F: 329b7965_by_Libranalysis.exe File opened (read-only) \??\I: 329b7965_by_Libranalysis.exe File opened (read-only) \??\X: 329b7965_by_Libranalysis.exe File opened (read-only) \??\T: 329b7965_by_Libranalysis.exe File opened (read-only) \??\W: 329b7965_by_Libranalysis.exe File opened (read-only) \??\J: 329b7965_by_Libranalysis.exe File opened (read-only) \??\P: 329b7965_by_Libranalysis.exe File opened (read-only) \??\S: 329b7965_by_Libranalysis.exe File opened (read-only) \??\U: 329b7965_by_Libranalysis.exe File opened (read-only) \??\Z: 329b7965_by_Libranalysis.exe File opened (read-only) \??\D: 329b7965_by_Libranalysis.exe File opened (read-only) \??\A: 329b7965_by_Libranalysis.exe File opened (read-only) \??\G: 329b7965_by_Libranalysis.exe File opened (read-only) \??\H: 329b7965_by_Libranalysis.exe File opened (read-only) \??\B: 329b7965_by_Libranalysis.exe File opened (read-only) \??\E: 329b7965_by_Libranalysis.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
329b7965_by_Libranalysis.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\\9980.bmp" 329b7965_by_Libranalysis.exe -
Drops file in Program Files directory 27 IoCs
Processes:
329b7965_by_Libranalysis.exedescription ioc process File opened for modification \??\c:\program files\MoveProtect.zip 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\PingDisable.tiff 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\SearchOpen.zip 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\SwitchClose.dotx 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\PingBackup.ttf 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\PingCopy.rle 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\SubmitCompare.cr2 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\FormatPublish.html 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\TraceHide.ppsm 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\SuspendReceive.xlsb 329b7965_by_Libranalysis.exe File created \??\c:\program files (x86)\81bpm4h2bi-readme.txt 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\AddUninstall.js 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\DebugSplit.zip 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\DisableRestart.vsdx 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\EnableSelect.dotx 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\OptimizeWait.wma 329b7965_by_Libranalysis.exe File created \??\c:\program files\81bpm4h2bi-readme.txt 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\UpdateSuspend.mpg 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\OptimizeCopy.html 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\RedoBlock.3gp 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\StopResolve.css 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\FormatUnpublish.M2T 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\MergeGet.emz 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\SwitchComplete.wma 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\BlockInstall.mov 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\ConnectBackup.htm 329b7965_by_Libranalysis.exe File opened for modification \??\c:\program files\ConvertFromSkip.inf 329b7965_by_Libranalysis.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
329b7965_by_Libranalysis.exepowershell.exepid process 1892 329b7965_by_Libranalysis.exe 1892 329b7965_by_Libranalysis.exe 2572 powershell.exe 2572 powershell.exe 2572 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
329b7965_by_Libranalysis.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 1892 329b7965_by_Libranalysis.exe Token: SeDebugPrivilege 2572 powershell.exe Token: SeBackupPrivilege 3400 vssvc.exe Token: SeRestorePrivilege 3400 vssvc.exe Token: SeAuditPrivilege 3400 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
329b7965_by_Libranalysis.exedescription pid process target process PID 1892 wrote to memory of 2572 1892 329b7965_by_Libranalysis.exe powershell.exe PID 1892 wrote to memory of 2572 1892 329b7965_by_Libranalysis.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\329b7965_by_Libranalysis.exe"C:\Users\Admin\AppData\Local\Temp\329b7965_by_Libranalysis.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:1892 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2572
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2564
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3400
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/2572-114-0x0000000000000000-mapping.dmp
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memory/2572-120-0x000001BBC2BA0000-0x000001BBC2BA1000-memory.dmpFilesize
4KB
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memory/2572-124-0x000001BBC4E30000-0x000001BBC4E31000-memory.dmpFilesize
4KB
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memory/2572-129-0x000001BBC2C50000-0x000001BBC2C52000-memory.dmpFilesize
8KB
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memory/2572-130-0x000001BBC2C53000-0x000001BBC2C55000-memory.dmpFilesize
8KB
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memory/2572-136-0x000001BBC2C56000-0x000001BBC2C58000-memory.dmpFilesize
8KB