Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 12:11
General
- Target 2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe
- Size 148KB
- Sample240107-pc4n8sdhbk
- SHA256 6cea73bf6b0dc1b65cfd53f03a0eae4fe06d0039533533f93fffe8d5959728e3
Score
7/10
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
asih.exe
memory/548-21-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/548-18-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/548-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1680-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1680-2-0x0000000000670000-0x0000000000676000-memory.dmp
memory/1680-3-0x00000000021B0000-0x00000000021B6000-memory.dmp
memory/1680-1-0x0000000000670000-0x0000000000676000-memory.dmp
memory/1680-19-0x0000000000500000-0x0000000000510000-memory.dmp