Analysis
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max time kernel
90s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
21-09-2022 04:04
General
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Target
HEUR-Trojan.MSIL.DelShad.gen-9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0.exe
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Size
1.1MB
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MD5
cf88599048145e4911915215a91527f4
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SHA1
f4ba5c7117736388c4de3442b1d6e4f84628c15d
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SHA256
9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0
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SHA512
254f6e26ed075ff1fe46493e36e6ec7eb70db52d2219070b6a77cbf7202d231fc826bd3fb69bdcaee86e45c9ce4ee8bc7085d37d5627a0bc1d2ec86aa9f2c0f7
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SSDEEP
24576:tFJpkHzc3HYxhOIxYk3+cG5w1Uz4RcU96o/pkFMzs3pOqA:zkHzl+0OFO1a4RcU8o/pCMzWO
Malware Config
Signatures
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Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 4 IoCs
Ransomware generally changes the extension on encrypted files.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 4 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.DelShad.gen-9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0.exe"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.DelShad.gen-9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.DelShad.gen-9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0.exe"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.DelShad.gen-9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0.exe"2⤵
- Modifies extensions of user files
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
1.2MB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
40KB
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Filesize
624KB