Analysis
- max time kernel
143s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/05/2024, 03:01
General
- Target 2024-05-25_d87f58ffe8d74fe7f479dbc9b69c6104_cryptolocker.exe
- Size 62KB
- Sample240525-dh98escd83
- SHA256 8752bf70c613ef723c48a2ebab12e83c14e01c881c0f51bed987307ffd4749ed
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 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\2024-05-25_d87f58ffe8d74fe7f479dbc9b69c6104_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_d87f58ffe8d74fe7f479dbc9b69c6104_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 --no-appcompat-clear --mojo-platform-channel-handle=4256 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
asih.exe
memory/636-0-0x0000000002140000-0x0000000002146000-memory.dmp
memory/636-1-0x0000000002140000-0x0000000002146000-memory.dmp
memory/636-2-0x0000000002050000-0x0000000002056000-memory.dmp
memory/3388-17-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/3388-23-0x00000000006A0000-0x00000000006A6000-memory.dmp