Analysis
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max time kernel
157s -
max time network
163s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
16-11-2023 23:50
Static task
static1
Behavioral task
behavioral1
Sample
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
Resource
win10v2004-20231020-en
General
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Target
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
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Size
114KB
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MD5
77be32b91561d1ac5e36464766b7b0a7
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SHA1
9c72fe9c8e24b5c0bde50c71d74fb2586c4201ce
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SHA256
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de
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SHA512
c8d0d6d15322172631b184acf5df86851dff7d8f15fde9cee7d0b7e4919433ec5b096f4079b5acba78d27dcfc42bfc2bcd3f184cb0a54c13b71aeb40f8ea4152
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SSDEEP
1536:FApx/1k2jbVnO3c+FpR5Q9JzY02pTmZ0ICS4AtebOMZzqFTj5vel1KkK3I:ck2X8M+Fp4vY06A2roFTj5vYc
Malware Config
Extracted
C:\Recovery\04umsm-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/6EF327E2F29499A3
http://decryptor.cc/6EF327E2F29499A3
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XhJXszhvjk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe" 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process File opened (read-only) \??\L: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\V: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Y: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\W: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\S: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Z: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\D: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\F: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\H: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\K: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\R: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\A: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\I: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\J: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\O: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\T: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\U: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\E: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\P: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\G: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\N: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\X: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\B: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\M: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened (read-only) \??\Q: 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\yq69p.bmp" 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Drops file in Program Files directory 29 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription ioc process File opened for modification \??\c:\program files\BlockGet.vst 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\WatchCheckpoint.ram 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RedoUpdate.rle 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ResolveOut.ttc 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\CompleteExport.bin 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\JoinRestart.tiff 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\EnterRevoke.aiff 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\SetPush.tif 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ImportPush.ps1xml 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RequestSelect.ttc 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\SkipDismount.mpg 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\UnregisterUnblock.mpg 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\BackupCompare.ppt 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\GetSelect.iso 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ConnectInvoke.pps 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\FormatRegister.temp 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File created \??\c:\program files\04umsm-readme.txt 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\CompleteCompare.tif 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\DisconnectMount.7z 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ExpandRestart.M2T 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\OptimizeStop.vdx 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RestartBlock.mpv2 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File created \??\c:\program files (x86)\04umsm-readme.txt 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\CloseMerge.ods 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\RemoveBackup.mid 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\UnprotectSplit.php 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\WatchDismount.ods 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\AssertDismount.ex_ 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe File opened for modification \??\c:\program files\ConvertComplete.wm 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exepowershell.exepid process 4584 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe 4584 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe 2228 powershell.exe 2228 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 4584 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe Token: SeDebugPrivilege 2228 powershell.exe Token: SeBackupPrivilege 1648 vssvc.exe Token: SeRestorePrivilege 1648 vssvc.exe Token: SeAuditPrivilege 1648 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exedescription pid process target process PID 4584 wrote to memory of 2228 4584 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe powershell.exe PID 4584 wrote to memory of 2228 4584 133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe powershell.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe"C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2228
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2288
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1648
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6KB
MD561eeff0ad8a495f2377d4d00b3ace3ca
SHA1d3c4721ac0fc37dfa2276200c50dce668b2472ef
SHA256e8ee4ee0aada45585bc257a95dbab38952bd0b87d79723888d9e0cbfd1ff1c4f
SHA512b1f3511e672794b4f2ec487ef1688b281de5a97979ea7b4edba21958e667f81e82167a80b9c5aae38809cb14388844dcb766e1e63a449ceac0b7975a2bb41087
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82