Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
21/08/2026, 02:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe
- Size 42KB
- Sample260821-cmm31seq8v
- SHA256 d3e31b96b6e6a447779efe38c481c6338eb10272e3604998642bc9436f152a2a
- MD5 f2920a97e47dbb1bea75a5883cb35284
- SHA1 139ebe43955d88cccf8821bbe941157b402c3cef
- SHA512 5f6cf4fb2c81e4e48545d809be8ea13ac515d20d60be1ff5e85438fc7641ff556b8f347c02ef0631de06d7811dc64e646c7433156a56d74b1d35dbdc113770d0
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCR0:bgGYcA/53GAGgIvFk0
- TLSH T1EA1374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3620-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c472-13.dat CryptoLocker_rule2 behavioral2/memory/5252-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5252-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5252 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 2026-08-20_f2920a97e47dbb1bea75a5883cb35284_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 3620 wrote to memory of 5252 3620 2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_f2920a97e47dbb1bea75a5883cb35284_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3620 -
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:5252
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 5a6099ed62b84c4ff9dc85e65b8245604096fccf34747077c8274d0911aa0c74
- MD5 ede810437c368705cf873f8fe511b418
- SHA1 b2100582cd2487bb0be76c39345974e6470fc144
- SHA512 1eb7a3c784e5a4899ba1d2cdddf60be3400ffca56f520f4b1927da9fe7ea78de46b7b508d8353a2068ad728f682b4ed0e9c10ff46adb0d2c335a0cd2a70c838a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCR1:bgGYcA/53GAGgIvFk1
- TLSH T1E51374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH