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
20/08/2026, 14:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe
- Size 25KB
- Sample260820-rmgcssdg85
- SHA256 f0da26729784dcda8dd2f3ee0ecba3c522872741befc61edd257989eb804d326
- MD5 e25039f20aa05b64950508e20e85cf74
- SHA1 96eded2ae980feee10e25d712cfbda1c5f056722
- SHA512 ad406ef1d4b298d75e684a2cfa5c00eed89ac069a7d81ef8b9c7ec52337b44c71da289cf824d1a77f304befaf14efb227d55966f43ae175f563c92393ba6d742
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUR+:bA74zYcgT/Ekd0ryfj2+
- TLSH T151C24B2677677C92D0595EB025FBE101797FBC543B38498FBCCE77ACEAB1291A002482
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5904-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c535-13.dat CryptoLocker_rule2 behavioral2/memory/2996-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2996-26-0x0000000008000000-0x0000000008009000-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 2026-08-20_e25039f20aa05b64950508e20e85cf74_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 5904 wrote to memory of 2996 5904 2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_e25039f20aa05b64950508e20e85cf74_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5904 -
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 25KB
- SHA256 32ee73801ea05f49ca67c6f1a47d1921f6f1e66b2d6bcde1e03f7f8d72b32eae
- MD5 76e738067a4bcf50de22f3684c9429f6
- SHA1 22f5554ca02fc1973f256bec5834e4ebff3e30e2
- SHA512 1b49eaaf2fd151cdbcf49c01310eebcd1eca6362267db0b43ab5b7e16af496f8e2dcaee69be431aa3ebf871dc8afc07197076f9173b2d2e7e2d7902c85aa4ff5
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDURj:bA74zYcgT/Ekd0ryfj2j
- TLSH T188C25B2577A77C92D0695EB025FBE101797FBC503B38498FBCCE77ACDA71291A402482
- MD5 SHA1 SHA512 SSDEEP TLSH