Analysis
- max time kernel
145s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
25/01/2024, 17:23
General
- Target 2024-01-25_1c32672579aef6ddcaf6fd2a67e98250_cryptolocker.exe
- Size 82KB
- Sample240125-vyevwsbeg2
- SHA256 3f0c0b7f8cb851cf7084659b0ee17823cd4a1eb70fac11c05ee4c69969f97166
Malware Config
Signatures
- Kinsing
Kinsing is a loader written in Golang.
- Detection of CryptoLocker Variants 6 IoCs
- Detection of Cryptolocker Samples 6 IoCs
- UPX dump on OEP (original entry point) 6 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 6 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\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"1⤵
- Checks computer location settings
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\2024-01-25_1c32672579aef6ddcaf6fd2a67e98250_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_1c32672579aef6ddcaf6fd2a67e98250_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
misid.exe
misid.exe
misid.exe
memory/1656-25-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/1656-19-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/1656-54-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3076-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3076-2-0x0000000000620000-0x0000000000626000-memory.dmp
memory/3076-3-0x0000000000750000-0x0000000000756000-memory.dmp
memory/3076-1-0x0000000000620000-0x0000000000626000-memory.dmp
memory/3076-17-0x0000000000500000-0x0000000000510000-memory.dmp