Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 04:32
General
- Target 2024-06-13_a9184bec93f45d2075486fb177a62fa4_cryptolocker.exe
- Size 34KB
- Sample240613-e56n7axgrk
- SHA256 049c68c2b8f22de0afb40b7dc1f53708aa1ae3fb1698e0abf8e901d74f8e33f0
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\2024-06-13_a9184bec93f45d2075486fb177a62fa4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a9184bec93f45d2075486fb177a62fa4_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\retln.exe"C:\Users\Admin\AppData\Local\Temp\retln.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=3812,i,13640054265074968359,8146127767143474550,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
retln.exe
memory/764-25-0x00000000021E0000-0x00000000021E6000-memory.dmp
memory/1392-0-0x0000000000640000-0x0000000000646000-memory.dmp
memory/1392-2-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1392-1-0x0000000000640000-0x0000000000646000-memory.dmp