Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/07/2026, 09:59
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe
Resource
win11ltsc2024-20260706-en
18 signatures
150 seconds
General
- Target 2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe
- Size 46KB
- Sample260708-l1bftaes2x
- SHA256 d7210834dd8572e3e6db9ae9b26ca9692b7baad22c636673a8d760d3e8fe17ae
- MD5 12b6e443b8a68563596f7626493b8a80
- SHA1 8687589123127ab0233a53f0e66a32f9347c9f05
- SHA512 a3ba5a33d9e99a3fa036037a655b62058d71788fc04332613a378e4438ae3ddb26c88e176bcf1b94abcb19deb5b7afd54586aed8412ef27037bee3b8fa02d18d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuR:bgGYcA/53GAGgIvF7EkR
- TLSH T14E2321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/732-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000024658-13.dat CryptoLocker_rule2 behavioral1/memory/2960-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2960-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000\Control Panel\International\Geo\Nation 2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2960 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 2026-07-08_12b6e443b8a68563596f7626493b8a80_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 732 wrote to memory of 2960 732 2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:732 -
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:2960
-
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 2b23230f922959bcbe4c6cbb14c9d66cf356bf907b66c5c49c4742e80ba45a1e
- MD5 15cdbc8246d512dd6627078946d3ce94
- SHA1 93ee585e72624805c1848e9bb82f562f45005b8f
- SHA512 d394b6c18898f764262c1da32688969601bcf7ca2efcca6735d3def8e0360f17dad86c0f4dc986f551c883803b68012e05e1a76ca8301f06714e3a1809ea3d4e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuM:bgGYcA/53GAGgIvF7EkM
- TLSH T19C2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH