Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
03/06/2024, 09:35
General
- Target 2024-06-03_69bc28a569d1d57be8dad1a9c61f4ce5_cryptolocker.exe
- Size 54KB
- Sample240603-lkl8dabe52
- SHA256 9c9b9d1ecbe158589b37a0a1bf9a3ff5d5b677797f99c750fe50bbd711f9e491
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\2024-06-03_69bc28a569d1d57be8dad1a9c61f4ce5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_69bc28a569d1d57be8dad1a9c61f4ce5_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=4396,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/2264-0-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/2264-1-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/2264-8-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/3744-17-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/3744-23-0x00000000005A0000-0x00000000005A6000-memory.dmp