Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 03:53
General
- Target 2024-06-13_f1aa8b88016369cb1cf6dfad3f6d2eb9_cryptolocker.exe
- Size 44KB
- Sample240613-efvwdsxblp
- SHA256 7b96ebd87203b67897ba183249cb936dde859acccd1cb63fdabfe2435a0ed38d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 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_f1aa8b88016369cb1cf6dfad3f6d2eb9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_f1aa8b88016369cb1cf6dfad3f6d2eb9_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.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=4048,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=4836 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
lossy.exe
memory/232-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/232-20-0x0000000002060000-0x0000000002066000-memory.dmp
memory/232-26-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/232-27-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1740-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1740-1-0x0000000000590000-0x0000000000596000-memory.dmp
memory/1740-2-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1740-9-0x0000000000590000-0x0000000000596000-memory.dmp
memory/1740-17-0x0000000008000000-0x000000000800A000-memory.dmp