Analysis
- max time kernel
152s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/06/2024, 00:15
General
- Target 2024-06-02_8e386de36fab6436374436d4cdd4299e_cryptolocker.exe
- Size 41KB
- Sample240603-aj54bade62
- SHA256 18624ce5dd4b7eb5f3a714b04309ca0939c6ca3cb75b86603337142a1c2bf41d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 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\2024-06-02_8e386de36fab6436374436d4cdd4299e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_8e386de36fab6436374436d4cdd4299e_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 --mojo-platform-channel-handle=2228 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/1384-0-0x0000000002160000-0x0000000002166000-memory.dmp
memory/1384-1-0x0000000002160000-0x0000000002166000-memory.dmp
memory/1384-2-0x0000000002190000-0x0000000002196000-memory.dmp
memory/4024-17-0x0000000002190000-0x0000000002196000-memory.dmp
memory/4024-18-0x0000000003010000-0x0000000003016000-memory.dmp