Analysis
- max time kernel
148s - max time network
162s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
30/05/2024, 03:48
General
- Target 2024-05-30_5622f7e00a1dd417d57931c75ec6a8b4_cryptolocker.exe
- Size 46KB
- Sample240530-ect5padd3t
- SHA256 b705c4fd700883735121793c1abbc10e6528d5c39333c139807e3b7262671160
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\2024-05-30_5622f7e00a1dd417d57931c75ec6a8b4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-30_5622f7e00a1dd417d57931c75ec6a8b4_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=3816 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/628-0-0x0000000000520000-0x0000000000526000-memory.dmp
memory/628-1-0x0000000000520000-0x0000000000526000-memory.dmp
memory/628-2-0x0000000000640000-0x0000000000646000-memory.dmp
memory/1436-18-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/1436-23-0x00000000006B0000-0x00000000006B6000-memory.dmp