Analysis
- max time kernel
118s - max time network
119s - platform
windows7_x64 - resource
win7-20240419-en - resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system - submitted
31/05/2024, 06:32
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
Resource
win7-20240419-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
Resource
win10v2004-20240226-en
5 signatures
150 seconds
General
- Target 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
- Size 36KB
- Sample240531-hatb6aaa4t
- SHA256 e4e7cef0b0ee110aefa479693d582a0e8736dd3cd1b1f7441a08bf0ad631daf7
- MD5 5b6e235617031ec91033a00df7cab708
- SHA1 6004478f3e2c9c672893a232d6ce01ab59e76000
- SHA512 02318cfecceed82eaed6ce69d1c97aaf1da18d5b22cf5bbf320a90fb6bc3c2367b2d4ffb4196e103c3f73a9b6ca6bb063906a2c76191147b95797fc1d451ba71
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvvOw:btB9g/WItCSsAGjX7r3BTZvvOw
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0007000000012120-10.dat CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2556 gewos.exe - Loads dropped DLL 1 IoCs
pid Process 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of UnmapMainImage 2 IoCs
pid Process 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe 2556 gewos.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1008 wrote to memory of 2556 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe 28 PID 1008 wrote to memory of 2556 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe 28 PID 1008 wrote to memory of 2556 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe 28 PID 1008 wrote to memory of 2556 1008 2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1008 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2556
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path \Users\Admin\AppData\Local\Temp\gewos.exe
- Size 36KB
- SHA256 d7c75f54575102bedc23de256fd9efc55f65978a2723d7585db346609174e636
- MD5 81adc6de441fe6478427f0fd334a6432
- SHA1 d054051368dc9dd538438219f361190c6958a1cd
- SHA512 fa9a2be45b741fd7a3a0120f5fa734ecb2df02afd1227b95a00da6bcb3591c175f0407aeac6f2b427bb8980342aefae57bcd3112eba2941d341fdd51171177ea
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvvOb:btB9g/WItCSsAGjX7r3BTZvvOb
- MD5 SHA1 SHA512 SSDEEP