Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
25/05/2024, 03:01
General
- Target 2024-05-25_d5664e19dc2d0f342a2f53b6bfe0f224_cryptolocker.exe
- Size 33KB
- Sample240525-dh2ahscc5y
- SHA256 cdf6a4d67a2e7bc9e3ad1f970dbd92abf3e7ad5d04dfb05b7ada37202564b8e2
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 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_d5664e19dc2d0f342a2f53b6bfe0f224_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_d5664e19dc2d0f342a2f53b6bfe0f224_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.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 --field-trial-handle=4436,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/2340-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2340-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/2340-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/2340-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/2340-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2844-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2844-26-0x0000000008000000-0x000000000800A000-memory.dmp