Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
29/05/2024, 12:12
General
- Target 2024-05-29_92d7747209e3847b912a6b7cad2216d0_cryptolocker.exe
- Size 74KB
- Sample240529-pdnpeadh4x
- SHA256 f3f3bb8fa9d6abaa55470d8e276e37cfa3cacc5ca53f964d23de6034d5740e81
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 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\2024-05-29_92d7747209e3847b912a6b7cad2216d0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-29_92d7747209e3847b912a6b7cad2216d0_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 --field-trial-handle=1280,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/624-17-0x0000000002100000-0x0000000002106000-memory.dmp
memory/624-23-0x00000000021E0000-0x00000000021E6000-memory.dmp
memory/3752-0-0x0000000000730000-0x0000000000736000-memory.dmp
memory/3752-1-0x0000000000750000-0x0000000000756000-memory.dmp
memory/3752-8-0x0000000000730000-0x0000000000736000-memory.dmp