Analysis
- max time kernel
146s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
09/03/2024, 03:43
General
- Target 2024-03-09_f5e17507fac7e0bc19c42a45ba74d5a4_cryptolocker.exe
- Size 38KB
- Sample240309-d94jysdb7z
- SHA256 fd0a823750d2852be8660d5a3bf792a49710c3dbc1c25bcc910e94028e5865cf
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\2024-03-09_f5e17507fac7e0bc19c42a45ba74d5a4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-09_f5e17507fac7e0bc19c42a45ba74d5a4_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.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=3780 --field-trial-handle=2284,i,2771196087253062161,8107167670425198948,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
demka.exe
memory/4844-21-0x0000000002010000-0x0000000002016000-memory.dmp
memory/5016-0-0x0000000000600000-0x0000000000606000-memory.dmp
memory/5016-1-0x0000000000600000-0x0000000000606000-memory.dmp
memory/5016-2-0x0000000000400000-0x0000000000406000-memory.dmp