Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
11/06/2024, 02:48
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe
Resource
win7-20240508-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe
Resource
win10v2004-20240508-en
6 signatures
150 seconds
General
- Target 2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe
- Size 37KB
- Sample240611-dahs7ssckp
- SHA256 04d79f14b50d46e81daa2665a434c851a8bcfb896267137eb6a19f44fb1a8678
- MD5 22ba8821e3fc83d023d0ee3565f511b2
- SHA1 8873fd96507d970609ac5e461790e8eab91351fc
- SHA512 d1107c351867caab4eeb9a32b0a224cc46569e25c97e87a74b439e4da0bc492ddbd3eb340b75e9a3645a9d18910847e609032efead6aef7feb79bb772bfafd6c
- SSDEEP 768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4XY6y:fT+hsMQMOtEvwDpjoIHIx
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000700000002328e-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000700000002328e-12.dat CryptoLocker_set1 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 776 misid.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4640 wrote to memory of 776 4640 2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe 81 PID 4640 wrote to memory of 776 4640 2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe 81 PID 4640 wrote to memory of 776 4640 2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:776
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 37KB
- SHA256 156b31046492066d20672800f3c94dac8c8abb477434216293e63497da645332
- MD5 80fcfc71f3644e3cddff5a5aab4888a8
- SHA1 2c03290e69c7e92f5448ec48a42dce23389c2b84
- SHA512 0c500a06f0305ca0f66dedb3c20ff8a167b21ee061e1d2f174a570caf46f717496014c53a1fe45b265b5ddbbcb90473d6df698f0ad36c88a41e5b25e89c8022c
- SSDEEP 768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4XY6i:fT+hsMQMOtEvwDpjoIHIB
- MD5 SHA1 SHA512 SSDEEP