Analysis
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max time kernel
150s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2024 12:56
Static task
static1
Behavioral task
behavioral1
Sample
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
Resource
win10v2004-20240226-en
General
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Target
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
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Size
114KB
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MD5
77be32b91561d1ac5e36464766b7b0a7
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SHA1
9c72fe9c8e24b5c0bde50c71d74fb2586c4201ce
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SHA256
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de
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SHA512
c8d0d6d15322172631b184acf5df86851dff7d8f15fde9cee7d0b7e4919433ec5b096f4079b5acba78d27dcfc42bfc2bcd3f184cb0a54c13b71aeb40f8ea4152
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SSDEEP
1536:FApx/1k2jbVnO3c+FpR5Q9JzY02pTmZ0ICS4AtebOMZzqFTj5vel1KkK3I:ck2X8M+Fp4vY06A2roFTj5vYc
Malware Config
Extracted
C:\Recovery\1bv85-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/C4FD35078BE964ED
http://decryptor.cc/C4FD35078BE964ED
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XhJXszhvjk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe" 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process File opened (read-only) \??\L: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\T: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\D: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Z: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\S: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\U: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\V: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\N: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Q: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\B: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\G: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\J: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\O: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\X: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Y: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\E: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\I: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\M: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\A: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\H: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\P: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\F: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\K: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\R: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\W: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mj2lrm82.bmp" 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Drops file in Program Files directory 33 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process File opened for modification \??\c:\program files\CompressWait.i64 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\LockSave.vstx 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\MountUnregister.mpg 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\PingSwitch.emz 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\UnlockClear.kix 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ConvertFromJoin.zip 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ExitDisable.rmi 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\FormatMove.htm 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\LimitSwitch.docx 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\CompleteStep.ini 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\JoinImport.nfo 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\StartEnter.dwg 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\InstallPublish.mp4v 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\SearchRename.mp4 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\TestExit.ini 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RemoveRead.7z 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\SplitInvoke.rar 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\BackupHide.cr2 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\CompareTrace.mhtml 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\DisableApprove.sql 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File created \??\c:\program files\1bv85-readme.txt 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\AssertConnect.rmi 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\EnterConvertFrom.jpg 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RenameRestore.wpl 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\UnblockTrace.mht 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\UndoRedo.xlsb 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File created \??\c:\program files (x86)\1bv85-readme.txt 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\DisableRevoke.TS 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\EnableDisconnect.emf 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RepairInitialize.vssm 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\SelectInstall.xlsb 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\StopConnect.eprtx 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\TraceProtect.iso 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exepowershell.exepid process 940 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe 940 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe 4272 powershell.exe 4272 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 940 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe Token: SeDebugPrivilege 4272 powershell.exe Token: SeBackupPrivilege 3488 vssvc.exe Token: SeRestorePrivilege 3488 vssvc.exe Token: SeAuditPrivilege 3488 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription pid process target process PID 940 wrote to memory of 4272 940 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe powershell.exe PID 940 wrote to memory of 4272 940 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe powershell.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe"C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe"1⤵
- 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:940 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4272
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4352 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:81⤵PID:4860
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3488
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:1332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6KB
MD5525265cbf567bb32590b19ca4b3bdce3
SHA1a390c5dc4de6f647db0fd820de22230c10e72418
SHA256178b155b191d44f7b3d00fa982f24659e404d205fe0c95b5a96a24883bd1b645
SHA5129de172968e57eb8b77ba2c5d711a9d0dc1f2a835f3cec3c68f427cf4da5a6bbb59b11da9c759133c203e2a547d9412092faa6c024ea48b2bf194827ae2c007c8
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82