Analysis
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max time kernel
131s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
12/05/2024, 05:20
Behavioral task
behavioral1
Sample
3875e731897235291834fe7eae0279d0_JaffaCakes118.dll
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
3875e731897235291834fe7eae0279d0_JaffaCakes118.dll
Resource
win10v2004-20240426-en
General
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Target
3875e731897235291834fe7eae0279d0_JaffaCakes118.dll
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Size
164KB
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MD5
3875e731897235291834fe7eae0279d0
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SHA1
37b3d4a1fb5779826b82bb34f913a5e3c3c245d2
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SHA256
98127ecf793399daae7b15595978f9d8e39f3ba89551f0379f28f4fd1984ec22
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SHA512
9422bf401fc05f7afac0442a1e5271487e538cc41c03ec18bd9db9e9926ddf97649d89be75539182ff7f95b925cab742278c04e5066d858867cdedd8832ef669
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SSDEEP
3072:gdh/MHQzMozq4ndm8jX5IXzs+M9VQHDO3d0h:gdh/EGMgpdmwIXo+M9VQHDedE
Malware Config
Extracted
C:\Users\1x6x731os-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/411388CE9536B8E9
http://decryptor.top/411388CE9536B8E9
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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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) \??\B: rundll32.exe File opened (read-only) \??\G: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\M: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\D: rundll32.exe -
Drops file in Program Files directory 29 IoCs
description ioc Process File opened for modification \??\c:\program files\AddNew.dotx rundll32.exe File opened for modification \??\c:\program files\ConvertFromUnprotect.vdw rundll32.exe File opened for modification \??\c:\program files\FormatOpen.edrwx rundll32.exe File opened for modification \??\c:\program files\NewBlock.rar rundll32.exe File opened for modification \??\c:\program files\UnregisterPublish.php rundll32.exe File created \??\c:\program files (x86)\1x6x731os-readme.txt rundll32.exe File opened for modification \??\c:\program files\AssertUnregister.ini rundll32.exe File opened for modification \??\c:\program files\InvokeTrace.xps rundll32.exe File opened for modification \??\c:\program files\PushBlock.au rundll32.exe File opened for modification \??\c:\program files\ConnectInvoke.dib rundll32.exe File opened for modification \??\c:\program files\ConvertFromDebug.m1v rundll32.exe File opened for modification \??\c:\program files\EditSwitch.vstm rundll32.exe File opened for modification \??\c:\program files\EditUnblock.clr rundll32.exe File opened for modification \??\c:\program files\MergeConvert.dib rundll32.exe File opened for modification \??\c:\program files\FormatWait.cr2 rundll32.exe File opened for modification \??\c:\program files\JoinProtect.ADTS rundll32.exe File opened for modification \??\c:\program files\ShowSwitch.wav rundll32.exe File opened for modification \??\c:\program files\UnblockCompare.html rundll32.exe File opened for modification \??\c:\program files\UninstallUnlock.xsl rundll32.exe File opened for modification \??\c:\program files\ApproveResize.htm rundll32.exe File opened for modification \??\c:\program files\CloseOpen.ADTS rundll32.exe File created \??\c:\program files\1x6x731os-readme.txt rundll32.exe File opened for modification \??\c:\program files\ClearSuspend.docx rundll32.exe File opened for modification \??\c:\program files\ExpandExport.reg rundll32.exe File opened for modification \??\c:\program files\PopStart.tmp rundll32.exe File opened for modification \??\c:\program files\StartExit.txt rundll32.exe File opened for modification \??\c:\program files\MountEnable.vbe rundll32.exe File opened for modification \??\c:\program files\OptimizeDisconnect.bmp rundll32.exe File opened for modification \??\c:\program files\CheckpointShow.rle rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2408 rundll32.exe 2408 rundll32.exe 2128 powershell.exe 2128 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2128 powershell.exe Token: SeBackupPrivilege 2416 vssvc.exe Token: SeRestorePrivilege 2416 vssvc.exe Token: SeAuditPrivilege 2416 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3948 wrote to memory of 2408 3948 rundll32.exe 83 PID 3948 wrote to memory of 2408 3948 rundll32.exe 83 PID 3948 wrote to memory of 2408 3948 rundll32.exe 83 PID 2408 wrote to memory of 2128 2408 rundll32.exe 92 PID 2408 wrote to memory of 2128 2408 rundll32.exe 92 -
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\3875e731897235291834fe7eae0279d0_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3875e731897235291834fe7eae0279d0_JaffaCakes118.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2408 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2128
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:3708
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2416
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
6KB
MD5f2bb6a36887844ccb8292c8fa2508e52
SHA172de97d4c7cac4334295ec8c5e2900840780720b
SHA256e94ea6dda9a3c2ccc626c88040ab4cb2ee753560c3144da9a23c477328faed8e
SHA51223c85647e28d46a135bfb7beaf50db0737d879dbd96b5566040861ef61286794ef34668a2231f80f0ff66018b54b946a2c11e40fd1cbfb5f26570a8cd33c73a6
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82