Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/07/2026, 08:49
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe
- Size 46KB
- Sample260731-krge2aydrb
- SHA256 b3fd6c67a2bdd864d7cca63919ba2c4e5229f54ea279dc47750691b997470b96
- MD5 e11f8712ac4e65ce02e0fc67dc92659b
- SHA1 9cfcbe9d934405905c6d2c4e2dcec7d7065784dd
- SHA512 fd5cf7027b743fceb2a6ccc3a668096ef7aef55efbf0f7f6c957dce63cd5434c5bc80fed7003e43340276b01736d140f10569158c42277d94e8ab4bb3541228d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuy:bgGYcA/53GAGgIvF7Eky
- TLSH T16C2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5248-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cb1-13.dat CryptoLocker_rule2 behavioral2/memory/1668-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1668-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1668 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 2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_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 5248 wrote to memory of 1668 5248 2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-31_e11f8712ac4e65ce02e0fc67dc92659b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5248 -
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:1668
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 01792c61e82fffc95608ee6ade716aa167e2157eae9b41b836a7bb51d367efa7
- MD5 63a2688c2a0335179a31b9d649d9d22b
- SHA1 ae5aef116012d3ec04201a85b672060f8b36f1b3
- SHA512 a1898a0c1b13ece0d86dbab17efe84d270d6c8ba0a94df40ed2001595c2b669b847df092e63c909307536c3e1f16e249ccabc7943da463748b449669800dc23e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhun:bgGYcA/53GAGgIvF7Ekn
- TLSH T1CF2331387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH