Analysis
- max time kernel
143s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
13/06/2024, 03:24
General
- Target 2024-06-13_0afd6a19dc594a3dbc77c3e1690525de_cryptolocker.exe
- Size 42KB
- Sample240613-dyashasfke
- SHA256 8ff8815cafc468daddb658769e57fd46cc8a778921e9a6eab2f78cf4111205cb
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\2024-06-13_0afd6a19dc594a3dbc77c3e1690525de_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_0afd6a19dc594a3dbc77c3e1690525de_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=4048 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/3716-0-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/3716-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/3716-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4976-17-0x0000000000560000-0x0000000000566000-memory.dmp
memory/4976-18-0x0000000002070000-0x0000000002076000-memory.dmp