Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/08/2026, 13:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe
- Size 48KB
- Sample260824-qmpthaycmc
- SHA256 42ee3f0f9843274c737940fdb8998830912182b408a6ed01523b395dfe356317
- MD5 3f496a4df2b6bd98c736946923eb22d5
- SHA1 6906fc943ef9ed6fc7264f589d907997f060c594
- SHA512 2baa83f22ce893845b6a5652719fbd52f319de280b25591b001e55a03adbcfe533d3c46d4bca18045de028020340ae8d1ff93dd10f250cc228704221e0c45e79
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXZwR:bgGYcA/53GAGgIvFbq
- TLSH T1982344387FE62972D37BDFB586F691C6B97578223D16980D40CA43844833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3308-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001b87d-13.dat CryptoLocker_rule2 behavioral2/memory/4932-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4932-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4932 hasfj.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3308 wrote to memory of 4932 3308 2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_3f496a4df2b6bd98c736946923eb22d5_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3308 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4932
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 896d2c2093e15b9c3bfa62515ff0c3b98d5a6bf4e1eb7e909c8a94ad9c863ea3
- MD5 f02175a17a074e2bbbc13da5eb11c927
- SHA1 76c078bb57ec8c4112b51146c58ad1f49c2aa301
- SHA512 1572ce5ab7ec18b562cee0e9d40296a6e8416bade5e295b41692290cebe709af50a6e71948c727790d3da3253a6c92c314c76046f78f2371737d5550e6ff4998
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXZwi:bgGYcA/53GAGgIvFbR
- TLSH T1CB2344387FE52972E37BDFB586F691C6B97578223D16980D40CA43844833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH