Analysis
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max time kernel
118s -
max time network
141s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
30-01-2022 08:02
Static task
static1
Behavioral task
behavioral1
Sample
11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33.dll
Resource
win10-en-20211208
General
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Target
11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33.dll
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Size
116KB
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MD5
8118bb043de6911ddf2925eceac96d11
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SHA1
7e34d1121ec8881a7fc84d616d8f174e06dab569
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SHA256
11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33
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SHA512
1713623e30984f3fba8c8c0eb37394023147a932a361e8737c774024cd55df2494b23c027af78957028855c50dfd7158b61df56b19023fc507dbf62645182c12
Malware Config
Extracted
C:\z3i0gd73a-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/5BE5751BC451E538
http://decryptor.cc/5BE5751BC451E538
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) \??\V: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\S: 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) \??\G: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\M: rundll32.exe -
Drops file in Program Files directory 26 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification \??\c:\program files\FindReset.3g2 rundll32.exe File opened for modification \??\c:\program files\ImportLimit.xlsb rundll32.exe File opened for modification \??\c:\program files\RestoreSubmit.ADTS rundll32.exe File opened for modification \??\c:\program files\SplitCopy.vssm rundll32.exe File opened for modification \??\c:\program files\SuspendCompress.mhtml rundll32.exe File opened for modification \??\c:\program files\UninstallUnprotect.xltm rundll32.exe File opened for modification \??\c:\program files\DisableDeny.html rundll32.exe File opened for modification \??\c:\program files\ExitMove.vbe rundll32.exe File opened for modification \??\c:\program files\NewOut.png rundll32.exe File opened for modification \??\c:\program files\PushFind.sql rundll32.exe File opened for modification \??\c:\program files\SelectLock.inf rundll32.exe File opened for modification \??\c:\program files\SkipTest.ppsm rundll32.exe File opened for modification \??\c:\program files\WatchGrant.xlsb rundll32.exe File created \??\c:\program files (x86)\z3i0gd73a-readme.txt rundll32.exe File opened for modification \??\c:\program files\DisconnectStop.zip rundll32.exe File opened for modification \??\c:\program files\InitializeInvoke.vdx rundll32.exe File opened for modification \??\c:\program files\ResumePublish.aifc rundll32.exe File opened for modification \??\c:\program files\ShowWrite.ods rundll32.exe File opened for modification \??\c:\program files\UnpublishInitialize.xlt rundll32.exe File opened for modification \??\c:\program files\WaitUninstall.xml rundll32.exe File created \??\c:\program files (x86)\microsoft sql server compact edition\v3.5\z3i0gd73a-readme.txt rundll32.exe File created \??\c:\program files\z3i0gd73a-readme.txt rundll32.exe File opened for modification \??\c:\program files\FormatOut.aiff rundll32.exe File created \??\c:\program files (x86)\microsoft sql server compact edition\z3i0gd73a-readme.txt rundll32.exe File opened for modification \??\c:\program files\ConvertFromStop.mp2 rundll32.exe File opened for modification \??\c:\program files\OpenRepair.emf rundll32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
rundll32.exepid process 1100 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
rundll32.exevssvc.exedescription pid process Token: SeDebugPrivilege 1100 rundll32.exe Token: SeTakeOwnershipPrivilege 1100 rundll32.exe Token: SeBackupPrivilege 1092 vssvc.exe Token: SeRestorePrivilege 1092 vssvc.exe Token: SeAuditPrivilege 1092 vssvc.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1100 1848 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\11aaccd9547fd5a71335f33ce8e48ba37381013e16d4e69d01aa4252cfb17a33.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1100
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:608
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1092
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1100-55-0x0000000075421000-0x0000000075423000-memory.dmpFilesize
8KB