Analysis
- max time kernel
145s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
10/06/2024, 04:42
General
- Target 2024-06-10_367e9d11c36e91fd57aefa86018e03c0_cryptolocker.exe
- Size 65KB
- Sample240610-fb6b1acb9w
- SHA256 7d22a27d4ab22b38cebb0bdd1dec5d686cf8ed77b9c16b7642cdf313edb659f4
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 2 IoCs
- UPX dump on OEP (original entry point) 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\2024-06-10_367e9d11c36e91fd57aefa86018e03c0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_367e9d11c36e91fd57aefa86018e03c0_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=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
asih.exe
memory/4180-18-0x0000000000660000-0x0000000000666000-memory.dmp
memory/4180-19-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/4180-27-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4580-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4580-1-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/4580-2-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/4580-3-0x0000000002060000-0x0000000002066000-memory.dmp
memory/4580-26-0x0000000000500000-0x0000000000510000-memory.dmp