Analysis
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max time kernel
232s -
max time network
266s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
29-11-2022 18:35
General
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Target
a7ab0969bf6641cd0c7228ae95f6d217.exe
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Size
7.7MB
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MD5
a7ab0969bf6641cd0c7228ae95f6d217
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SHA1
002971b6d178698bf7930b5b89c201750d80a07e
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SHA256
117fc30c25b1f28cd923b530ab9f91a0a818925b0b89b8bc9a7f820a9e630464
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SHA512
7e1cce428e3b80b60635c354801af6e86354c9437ba7a661ca6a922c17057a16439a97d1ea11873eb359c05018df9eb6040b72fa97b30cf4d04cae56bf052b8a
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SSDEEP
49152:mwHittZSrb/TjvO90dL3BmAFd4A64nsfJTGNHltPgQjre0Q2hEsj2kcR9RsU/2LU:mwUs3dfC2at9kDXdmG55wuzZqGdE
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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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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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 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 15 IoCs
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Suspicious use of FindShellTrayWindow 2 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a7ab0969bf6641cd0c7228ae95f6d217.exe"C:\Users\Admin\AppData\Local\Temp\a7ab0969bf6641cd0c7228ae95f6d217.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\a7ab0969bf6641cd0c7228ae95f6d217.txt1⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of FindShellTrayWindow
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1812-132-0x0000000000000000-mapping.dmp
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memory/3640-133-0x0000000000000000-mapping.dmp