Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
27-10-2024 13:46
General
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Target
(2021) REvil.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:\Users\a645499-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/C0BCA713959B64BE
http://decryptor.cc/C0BCA713959B64BE
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Sodinokibi family
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Adds Run key to start application 2 TTPs 1 IoCs
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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.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Drops file in Program Files directory 28 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Modifies system certificate store 2 TTPs 10 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 5 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
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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\(2021) REvil.exe"C:\Users\Admin\AppData\Local\Temp\(2021) REvil.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- 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==2⤵
- 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 Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
6KB
MD577faaf145e57b217121bd9400a4d54a3
SHA1cff2222223c48220e3210907f7082bc1fb31b4b9
SHA2564fabe030ffe5367907195c647a5fd17959fa8622eaab95f4aebb1add3fddc631
SHA5129f63a888000ab0af76c3ba559bc338bd0bb763bf91939403a5e330774184d890a3634fe1fe7fcc9b24ca911443da79538862b18ef5a251acbd71a276783716a0
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Filesize
8KB
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Filesize
136KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB