Analysis
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max time kernel
131s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25-06-2022 09:41
Static task
static1
Behavioral task
behavioral1
Sample
97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea.dll
Resource
win10v2004-20220414-en
General
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Target
97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea.dll
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Size
164KB
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MD5
9b7ae55daabf4f040f78fb5f0831f8ad
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SHA1
f4c2c763c8b11bbab0407f5ffceea066bdf27bd6
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SHA256
97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea
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SHA512
12274089f73c7a01f580fb1e2100affbe6d9d4b1993fe563779520c4595e0d8e6578efa6532f40d65828e778871d23f6a4cec4fe47b6c9fef89d326962c95ad0
Malware Config
Extracted
C:\8pfm2w8-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/418074565164E385
http://decryptor.cc/418074565164E385
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 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\G: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\N: 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) \??\L: rundll32.exe File opened (read-only) \??\M: rundll32.exe -
Drops file in Program Files directory 12 IoCs
Processes:
rundll32.exedescription ioc process File created \??\c:\program files\8pfm2w8-readme.txt rundll32.exe File opened for modification \??\c:\program files\ExitNew.xlsm rundll32.exe File opened for modification \??\c:\program files\RegisterUninstall.js rundll32.exe File opened for modification \??\c:\program files\RestartTest.WTV rundll32.exe File opened for modification \??\c:\program files\TestSend.mpeg3 rundll32.exe File created \??\c:\program files (x86)\8pfm2w8-readme.txt rundll32.exe File opened for modification \??\c:\program files\OptimizeTest.dxf rundll32.exe File opened for modification \??\c:\program files\RevokeGrant.aiff rundll32.exe File opened for modification \??\c:\program files\SendConfirm.aifc rundll32.exe File opened for modification \??\c:\program files\SwitchSave.ini rundll32.exe File opened for modification \??\c:\program files\SyncMerge.ppt rundll32.exe File opened for modification \??\c:\program files\TraceRevoke.3gpp rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepowershell.exepid process 4784 rundll32.exe 4784 rundll32.exe 4932 powershell.exe 4932 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
rundll32.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 4784 rundll32.exe Token: SeDebugPrivilege 4932 powershell.exe Token: SeBackupPrivilege 528 vssvc.exe Token: SeRestorePrivilege 528 vssvc.exe Token: SeAuditPrivilege 528 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1860 wrote to memory of 4784 1860 rundll32.exe rundll32.exe PID 1860 wrote to memory of 4784 1860 rundll32.exe rundll32.exe PID 1860 wrote to memory of 4784 1860 rundll32.exe rundll32.exe PID 4784 wrote to memory of 4932 4784 rundll32.exe powershell.exe PID 4784 wrote to memory of 4932 4784 rundll32.exe powershell.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\97fe13f28643d0f26be866094227ed37f9e326a9fc4844d7f2467719d15818ea.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==3⤵
- 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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/4784-130-0x0000000000000000-mapping.dmp
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memory/4932-131-0x0000000000000000-mapping.dmp
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memory/4932-132-0x000001B8D9320000-0x000001B8D9342000-memory.dmpFilesize
136KB
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memory/4932-133-0x00007FFA86FF0000-0x00007FFA87AB1000-memory.dmpFilesize
10.8MB
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memory/4932-134-0x00007FFA86FF0000-0x00007FFA87AB1000-memory.dmpFilesize
10.8MB