Analysis
- max time kernel
125s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
14/06/2024, 01:22
General
- Target 2024-06-14_7ca6a75989e89a2430c4621bc6786f89_cryptolocker.exe
- Size 44KB
- Sample240614-brfdaszbpc
- SHA256 f18678e095ad2d5c8dc286164b66bf15833f4164c92253698f69e53f325f7fb7
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 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\2024-06-14_7ca6a75989e89a2430c4621bc6786f89_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-14_7ca6a75989e89a2430c4621bc6786f89_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.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 --field-trial-handle=4216,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hurok.exe
memory/3640-0-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/3640-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/3640-8-0x00000000005A0000-0x00000000005A6000-memory.dmp