Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/07/2026, 01:51
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
6 signatures
150 seconds
General
- Target 2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe
- Size 4.6MB
- Sample260705-b9yycsb18r
- SHA256 1d0666f22d627a6cc357a535c6b265ad80a812f1e55c7bb8669eef0f980e0fbf
- MD5 1b6643f044b32c5e6b8fac0339183beb
- SHA1 75ac1e6a6c875a3726d341e3ff2b59a25b55baa3
- SHA512 d4e490e410ee000de3595c7a7b0b8a86d7c0f4750bf377da0f627e6aadd8aa7d721519984cd9892153eb6f8037be17a542d63e91e8b1cce5870c9ea951e53be5
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT6:w/ZFIjBzF/ZFIjBzPEUus6
- TLSH T18D263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1220-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00170000000115bf-13.dat CryptoLocker_rule2 behavioral2/memory/5488-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5488-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x00170000000115bf-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5488 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 2026-07-05_1b6643f044b32c5e6b8fac0339183beb_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 1220 wrote to memory of 5488 1220 2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-05_1b6643f044b32c5e6b8fac0339183beb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220 -
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:5488
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 c2adc641efb6acbad6fe94f74eff03d9d4f94ded66ac0422ea52d24c9a5d7b52
- MD5 b0edf4179b088899c51d3f4f65bc01b6
- SHA1 6d07681efece2f32329b25947faf9542c7120f08
- SHA512 45faf56caf88db34a6f52e881ef8f83df5d56aebe6e0035dd9026f132a1b477264afe561d0c445279862ab1ea4d10ddf0416b4286f34534b27caf7b5902dc619
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTI:w/ZFIjBzF/ZFIjBzPEUusI
- TLSH T1A7263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH