Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 12:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe
- Size 43KB
- Sample260802-pgwjesam4s
- SHA256 94f5f82d8729990af793a2237957c786da2ffa4ce13b2acfda97afddc8f8ae76
- MD5 029bc48dc589ed330cfe3806218c94de
- SHA1 5bdcd46c781a4b4cc017ccdd223805aeccd2882b
- SHA512 34bdea3e068dd3e9f7d32389e4684e446540465f1a66c58b6bc2185378293552baa66cad99bbefa962c8c519a35010d43df9395d90067af9fd85cad28476283c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaOo:bgGYcA/53GAGgIvF76dOo
- TLSH T14B1343386FE62932D37BDF7586F691C6B975B8223D16980D40CA53844833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5712-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b86e-13.dat CryptoLocker_rule2 behavioral2/memory/3264-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3264-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3264 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5712 wrote to memory of 3264 5712 2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_029bc48dc589ed330cfe3806218c94de_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5712 -
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:3264
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 b980244b897d6f94de800547571b9b12586a2a302be4847f79012f5381eb466b
- MD5 a30fbf064495ad2ccc0648412b8711b0
- SHA1 e575d8f33a6e38851ec8e801dcaaa29373cc338c
- SHA512 5f9a8d8b733d346d22dbaf8b3fc905e82f952004aabb3fd158b0ef028ae2d816f4d2702f4b3c1544640d20250e25ae0e05bac0c78818b84fa89d92f7f1e7375a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaOd:bgGYcA/53GAGgIvF76dOd
- TLSH T1441343386FE62932D37BDF7586F691C6B975B8223D16980D40CA53844C33F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH