Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 18:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
5 signatures
150 seconds
General
- Target 2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe
- Size 40KB
- Sample260629-w8998acw21
- SHA256 1fa27b7adf358b2db5458e6d843f8a49c4bb2c18d8ceb1a94a6549f7a3ec8cea
- MD5 034833f6b7f8d814ea995a0739433f16
- SHA1 492f9b22d6ca1081533454cdd65c717037d084b8
- SHA512 f768a3bdc82c17bc1774c113a8848ee518059765ce96bc2e81acfc10b3e2b6726af453d7a5bf8ef0439c9064bf6faa2a7a78167ade5524edcc3426a7f7cfdc93
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCE:bgGYcA/53GAGgIvFZ
- TLSH T1DE0375387FE62972D37BDFB586F691C67975B8223D16880D44CA53844833F62EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5480-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000800000001a01e-13.dat CryptoLocker_rule2 behavioral2/memory/4880-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4880-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4880 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 2026-06-26_034833f6b7f8d814ea995a0739433f16_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 5480 wrote to memory of 4880 5480 2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-26_034833f6b7f8d814ea995a0739433f16_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5480 -
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:4880
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 40KB
- SHA256 80703454537c33dcf5d63c1e39fcc248a4e73abb9dbe00bf3333d0114ce345c5
- MD5 2bc0482e2f023adf612f151111910c37
- SHA1 aa4e9d348fa4c15637b7cd294bac9cd8a42becb2
- SHA512 5d481667bb10e2ea2f92fe68163b44a393b81664dd236f5712029acfeb540704e7edc711d5902e580bd0ca507c02e7baccc5f28fb658a76189f0874b4d13f74a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCp:bgGYcA/53GAGgIvFM
- TLSH T1E81375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH