Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
13/06/2024, 03:49
General
- Target 2024-06-13_b5774ab49f032667d3c06f1c647c6928_cryptolocker.exe
- Size 54KB
- Sample240613-edhhaatbpg
- SHA256 6a28b7a62ce3c183332843d4e1fa09dfdb9e5c51337b47040f45b75e56205d97
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 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\2024-06-13_b5774ab49f032667d3c06f1c647c6928_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b5774ab49f032667d3c06f1c647c6928_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
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4172,i,8447163055677043976,7218082390179600880,262144 --variations-seed-version --mojo-platform-channel-handle=4572 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/1400-2-0x0000000002070000-0x0000000002076000-memory.dmp
memory/1400-1-0x0000000002050000-0x0000000002056000-memory.dmp
memory/1400-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/1400-9-0x0000000002050000-0x0000000002056000-memory.dmp
memory/1400-18-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4932-17-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4932-20-0x0000000001FF0000-0x0000000001FF6000-memory.dmp
memory/4932-26-0x00000000006A0000-0x00000000006A6000-memory.dmp