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
29/07/2026, 22:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe
- Size 47KB
- Sample260729-2rae6axtet
- SHA256 4cf233468f3a75ffe6d1a5080548c15af672ece5f1431dfaa7f94d5127480bc4
- MD5 4111ff6bb469680a6a0fc0c4b375851f
- SHA1 bbf30d4b2aa7faa35431a5bb3bdff38d8df8003f
- SHA512 c5bb7ac4eec326776cbeeee818e13b8da2a49c273c5e947db0c20469953502859b5c7a726e7262e54f66ca4a79c36b57a70e0bb3a18767a67876674bfdfcd97a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqmO:bgGYcA/53GAGgIvF7EA
- TLSH T1DB2322387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3496-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00170000000115ef-13.dat CryptoLocker_rule2 behavioral2/memory/1900-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1900-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1900 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 2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_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 3496 wrote to memory of 1900 3496 2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-29_4111ff6bb469680a6a0fc0c4b375851f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3496 -
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:1900
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:1300
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 06a4aa5a6c6092767a71d1f42c721827ea00289a1d63383058b5c358bb83892a
- MD5 b7711ab4f0dd8903b704f03123939879
- SHA1 297b4042578525724e69b6b0219972de3e5e3797
- SHA512 852564b1f29e661c2e5c107377c5a45effb99162ddc5d310ab8d3748b30ae4b27111560c41b0397c5d8a89999a6aafca21a0ccee589a984a28f90b8c028cd2da
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqmf:bgGYcA/53GAGgIvF7Et
- TLSH T1E82322387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH