Analysis
- max time kernel
134s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
03/06/2024, 10:43
General
- Target 2024-06-03_31aa09e5046280090896a78401897b97_cryptolocker.exe
- Size 31KB
- Sample240603-mscvcada37
- SHA256 8c96eece4e4bb2baa2559725bd82ecf6a28de10f908a86f890e911e4764af117
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 1 IoCs
- Checks computer location settings 2 TTPs 2 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\2024-06-03_31aa09e5046280090896a78401897b97_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_31aa09e5046280090896a78401897b97_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Checks computer location settings
- 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=3244,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hurok.exe
memory/2988-25-0x0000000002040000-0x0000000002046000-memory.dmp
memory/3968-0-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/3968-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/3968-8-0x00000000005A0000-0x00000000005A6000-memory.dmp