Analysis
- max time kernel
140s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
30/05/2024, 03:57
General
- Target 2024-05-30_7af193e4da07ba65dc0d21aaced635af_cryptolocker.exe
- Size 47KB
- Sample240530-ejenksdf6x
- SHA256 1f5825de21060232e3b49fdc85dac3e1035c6b1dc11a4033c9e520b19cb135c9
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 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\2024-05-30_7af193e4da07ba65dc0d21aaced635af_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-30_7af193e4da07ba65dc0d21aaced635af_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 --mojo-platform-channel-handle=4072 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/1420-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1420-1-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/1420-2-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/1420-3-0x0000000000890000-0x0000000000896000-memory.dmp
memory/1420-25-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4456-19-0x0000000000510000-0x0000000000516000-memory.dmp
memory/4456-18-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4456-26-0x0000000000500000-0x000000000050B000-memory.dmp