Analysis
- max time kernel
141s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/03/2024, 03:26
General
- Target 2024-03-08_080a710746d276bfc56e52ae56fb07ae_cryptolocker.exe
- Size 69KB
- Sample240308-dy7ggaeb78
- SHA256 e67941f9f65a494e3f41d0e41f72d141df761b13750422a12319067f2df683da
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
- Detection of Cryptolocker Samples 3 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\2024-03-08_080a710746d276bfc56e52ae56fb07ae_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_080a710746d276bfc56e52ae56fb07ae_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=3612 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/1964-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1964-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/1964-2-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/1964-3-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/1964-19-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4268-18-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/4268-20-0x0000000000520000-0x0000000000526000-memory.dmp