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
06/09/2026, 17:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe
- Size 46KB
- Sample260906-vvf9jscc57
- SHA256 bce567c126ca5c1750b1cff0318e0977f33d1934fb7ae7bd4b61182cb6824b06
- MD5 d29df9a118e31c05cadd034bf7e98a7d
- SHA1 8038dad10beedcad20d7ec2d43b494a4e050c1e9
- SHA512 fb68b9e685e81d0460bb7c56c66e84fe4e25c3e5186d6948bc4ef8a20aadeabdd9c58cb0509acb9d0f42f536395361e8f06d76fcd002a897bdbb5c7fffd61d6f
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8J5P:bm74zYcgT/EkM0ryfjPdQZJh
- TLSH T117234024F6D62BF1D27AAB70C1BE90B1F627B81339154C4D748BEFC688227539A4354B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/5012-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5012-3-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b867-14.dat CryptoLocker_rule2 behavioral2/memory/5088-19-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5088-27-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5088 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 2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_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 5012 wrote to memory of 5088 5012 2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-06_d29df9a118e31c05cadd034bf7e98a7d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012 -
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:5088
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 46KB
- SHA256 f0b351e00bea9eaa0ea422169822c827ecaeff4335066c2e1d1d40bc60823f73
- MD5 fdc8214b792b6d7f973c178e80e055b4
- SHA1 bc737bfa4ff56f2e32c4da7d76e5884e5aa2c479
- SHA512 53a4415befcba0f963abff02744e6ac8e91011149c5559c671f9745028298ce8c55c33fa25e6a5dc69b72c97718598d76838e3a0391af289dd4620486ca9f6a1
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8J5S:bm74zYcgT/EkM0ryfjPdQZJo
- TLSH T13A235024F6D62BF1D27AAB70C1BE90B1F627B81339154C4D748BEBC688327539A4354B
- MD5 SHA1 SHA512 SSDEEP TLSH