Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
18/02/2024, 15:21
General
- Target 2024-02-18_1ba7c2a985f12aac7dded70877d636bd_cryptolocker.exe
- Size 41KB
- Sample240218-sralgscb52
- SHA256 609b7936146cabaaaf5160ca1a3a068eb9c6c9affdfc0789202e2d8989d66a4a
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- 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\2024-02-18_1ba7c2a985f12aac7dded70877d636bd_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-18_1ba7c2a985f12aac7dded70877d636bd_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
lossy.exe
memory/3260-17-0x0000000002070000-0x0000000002076000-memory.dmp
memory/3260-20-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4384-0-0x0000000002280000-0x0000000002286000-memory.dmp
memory/4384-1-0x0000000002280000-0x0000000002286000-memory.dmp
memory/4384-2-0x00000000021A0000-0x00000000021A6000-memory.dmp