Analysis
- max time kernel
114s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
31/05/2024, 06:32
General
- Target 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
- Size 36KB
- Sample240531-hatb6aaa4t
- SHA256 e4e7cef0b0ee110aefa479693d582a0e8736dd3cd1b1f7441a08bf0ad631daf7
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Checks computer location settings 2 TTPs 2 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\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Checks computer location settings
- 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=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
gewos.exe
gewosik.exe
memory/2628-25-0x0000000002180000-0x0000000002186000-memory.dmp
memory/4068-0-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/4068-1-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/4068-2-0x0000000000400000-0x0000000000406000-memory.dmp