Analysis
- max time kernel
151s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/06/2024, 16:01
General
- Target 2024-06-03_7a97972d2545384e831a9605b3be9d06_cryptolocker.exe
- Size 43KB
- Sample240603-tgd2labf6z
- SHA256 11e41947a954c5c2ecae0012d4cb29890b8356f290c85bf065dfed9f394f87e1
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 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\2024-06-03_7a97972d2545384e831a9605b3be9d06_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7a97972d2545384e831a9605b3be9d06_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 --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
lossy.exe
memory/4632-18-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/4632-24-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/4632-26-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4844-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4844-1-0x0000000002180000-0x0000000002186000-memory.dmp
memory/4844-2-0x0000000002180000-0x0000000002186000-memory.dmp
memory/4844-3-0x00000000021A0000-0x00000000021A6000-memory.dmp
memory/4844-25-0x0000000008000000-0x000000000800A000-memory.dmp