Analysis
- max time kernel
150s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 22:33
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe
- Size 70KB
- Sample260529-2gr78adt6k
- SHA256 99038cbf99752b37318ca0431d9e0a3bc359a01edd747a5a522d015571b77333
- MD5 59f1c8da8e48a111649c18ef76082f46
- SHA1 454bdda95174898c7da0d813401a8baff74179b6
- SHA512 69c8d56de0147ce74357d57749c41a0fc817b3ca9288a763434231d5a6cc74fabfdc9adec1e72ed7ff70984a52ffa4373df045cf067ab33c4d6383731fcd9f24
- SSDEEP 768:bG74zYcgT/Ekd0ryfjSb8qD+7g3Zectbr5+IunYw16CjgG1dU0DZ:bG6YcA/X6Gw8qDxRWP6CMqdUU
- TLSH T13F63A53C7BD61A72D3778AB196F791C7B935B4323912884D44CE43480933F66EDA2A4E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3456-2-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e0000000270ab-13.dat CryptoLocker_rule2 behavioral2/memory/5988-17-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5988-25-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5988 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 2026-05-29_59f1c8da8e48a111649c18ef76082f46_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 3456 wrote to memory of 5988 3456 2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-29_59f1c8da8e48a111649c18ef76082f46_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3456 -
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:5988
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 70KB
- SHA256 b3beadef2eba5be6bf23395798ffba26615e9c6f4edf87ab510238966f33f3d0
- MD5 7f27a160c0ba7ec189766440db0beddf
- SHA1 94abf049ce943e6be2d9fc3defa6f27d5eeb5f90
- SHA512 32603deb6c611f7e3fbc1a8a9aceadb2f3e9f143d034db787cf8a540d21789de581d050f89a836b68c871a7c47e7ef0ac7e265f4463fcfcde0bd6c45934fdc1a
- SSDEEP 768:bG74zYcgT/Ekd0ryfjSb8qD+7g3Zectbr5+IunYw16CjgG1dU0DU:bG6YcA/X6Gw8qDxRWP6CMqdUR
- TLSH T18163A53D7BD61A72D377CAB196F791C7B935B4323912884D44CA43480933F66EDA2A0E
- MD5 SHA1 SHA512 SSDEEP TLSH