Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 21:28
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe
- Size 43KB
- Sample260802-1bbgvaga77
- SHA256 73e54cdfd6fb7a8650383942ec4951c308373577edf7a39fabfff694faed6b78
- MD5 9aed6f3782f7fb1dac400ba0a8a548cc
- SHA1 3014ba32dd10da5385ac7f9ad22ecfcfe1f09465
- SHA512 3a8920e170c12d9011161fa3f7dd13a1f34a12f7c67280140b2c2f4f0c94f08e557837be6d9e9fe629640f9064ef6cc709c1a72540116eef8251004a216e9159
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaj:bgGYcA/53GAGgIvF76dj
- TLSH T1771354387FE62932D37BDFB586F651C6B975B8223D16980D40CA53844833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4148-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000f000000016cdf-13.dat CryptoLocker_rule2 behavioral2/memory/4600-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4600-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4600 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 2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_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 4148 wrote to memory of 4600 4148 2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_9aed6f3782f7fb1dac400ba0a8a548cc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4148 -
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:4600
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 18858e1e04590f839024e392a8b1c27011c812e4f5e9f007f43a5772551562ed
- MD5 161aaf55cf5a0a16eb3263ffa305c7a8
- SHA1 8ef225675f8d8b80e2229099e61b58b7f1b150ad
- SHA512 f0ee37b6f53d688de989ca4a6fa7496d4779459efd617720686c159e7a0c94be58d264e5966c871b359dd8a119cebc9cbc4befe2908db29a0ee4b0a97a1e0d5b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaQ:bgGYcA/53GAGgIvF76dQ
- TLSH T1FF1344387FE62932D37BDFB586F651C6B975B8223D16980D40CA53444833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH