Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 04:33
General
- Target 2024-06-13_b2b2df608718a0bb632ff74418812bd6_cryptolocker.exe
- Size 42KB
- Sample240613-e6ks4sthrf
- SHA256 f66c971cfd76e45d725a0f8d962e40d351e6a4c8865c66e3556ba43f02fdb882
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 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_b2b2df608718a0bb632ff74418812bd6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b2b2df608718a0bb632ff74418812bd6_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.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=4380,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=3644 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/2564-0-0x0000000002120000-0x0000000002126000-memory.dmp
memory/2564-8-0x0000000002120000-0x0000000002126000-memory.dmp
memory/2564-1-0x0000000003010000-0x0000000003016000-memory.dmp
memory/3932-23-0x0000000001FA0000-0x0000000001FA6000-memory.dmp