Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/08/2026, 10:49
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe
- Size 3.4MB
- Sample260813-mwtx2aac45
- SHA256 60afeb9d94145ea4fe35c779388f3f4914cb00248095b833870597632093f91c
- MD5 04802876e34774ef9e017ccb79963b53
- SHA1 f1fd0efb418a1087442c15da50e03e52452862ff
- SHA512 a6fa549b18f0b4abab64fc8c07c8d588c203b4406bb4b01a7844f7c493851d3c9c705567fdd62877cf2ed734ee18357d64b5c3208d675f0d9cd37081b5e9f45b
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfq:uR/ZFIjBzldUfs/ZFIjBz7jSZDP
- TLSH T19FF55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4568-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c4e0-13.dat CryptoLocker_rule2 behavioral2/memory/3300-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3300-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000e00000001c4e0-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3300 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 2026-08-13_04802876e34774ef9e017ccb79963b53_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 4568 wrote to memory of 3300 4568 2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-13_04802876e34774ef9e017ccb79963b53_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568 -
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:3300
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 3.4MB
- SHA256 dc10c5775165051a6de73349f1d421a35c2ed8f7a9b679fc202dbfc1a549802b
- MD5 042692251a8fedf326ff04451c6d1071
- SHA1 f40b46577839ed078e16280861822cb7d23c814d
- SHA512 bdb04d676923ede53239775a4e23febdd4dd3c4b0778ca5b917891fd1a91a64c227fbc0aaa45b3efb7d0adc492cef4d5772ab74a88a496b62f90ca9f56334b05
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfg:uR/ZFIjBzldUfs/ZFIjBz7jSZDZ
- TLSH T1EFF55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH