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
30/07/2026, 05:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe
- Size 41KB
- Sample260730-gcp7vace36
- SHA256 b86a83842963881addda30b561473c0061128247caf18ba8b2e83f35169fdeed
- MD5 513c96511c2b81ad334f7c9aea7875e5
- SHA1 e53c9717d5faa33083b0cd36321a3c6a8b5df7d5
- SHA512 af32007b8f453e32bda5506af819414e384798c5b02482f08506ce2452e3de7963e6e289edc934079ad55f72cf100729e2d2614db4a0cd92e2f4163440214613
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCI:bgGYcA/53GAGgIvF1
- TLSH T1201375387BE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1452-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b1e8-13.dat CryptoLocker_rule2 behavioral2/memory/2996-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2996-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2996 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 2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1452 wrote to memory of 2996 1452 2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-30_513c96511c2b81ad334f7c9aea7875e5_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1452 -
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:2996
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 8b8e5cdd66a7108724c6094c073aaa3d71c62ae1a633ff77fd3a426b20dafbad
- MD5 ad9bd00028bb4393815195d13c84a05d
- SHA1 8d3330f344e923218dd02bd7521b38c5ceb5ddf9
- SHA512 ca6011ff7cd84a0d10074aa7f41dd38d8a56be829235912720e41bbe54b4023d5ef5cfba53bc3231169a6510375f4e596d794daf37167a01e371927ede19d424
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCe:bgGYcA/53GAGgIvFX
- TLSH T10D1384387BE62972E37BDFB586F691C27975B8223D16880D44CA53844C33F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH