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, 21:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe
- Size 44KB
- Sample260802-1ncwfaxycv
- SHA256 0731c0f8863e02e2bca7f8624a9cdcbf7dc08af3df096d0ededb2e928d78c99c
- MD5 53f5a63057b643c1d85c9b8b316cd030
- SHA1 cb0f1d08b820f755e9cc67663062a1c0ce28185b
- SHA512 60ff6450a1a506baa58a8dbe218867fd4d36a05f8fa57034fa10df49ff46c70ea19daee9d9bacf0b1b8b43766509427aafb1a179f09008efd85f2f127863cfb1
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZuXSp:bgGYcA/53GAGgIvF9v2Zuip
- TLSH T18C1366387FE62972D37BDFB586F691C6B93578223D16980D40CA53844833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3392-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b1e8-13.dat CryptoLocker_rule2 behavioral2/memory/5436-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5436-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5436 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_53f5a63057b643c1d85c9b8b316cd030_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 3392 wrote to memory of 5436 3392 2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_53f5a63057b643c1d85c9b8b316cd030_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3392 -
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:5436
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 44KB
- SHA256 60200af26f36888b3ba27c769592a06a7dc8a56cbedf077f50a623305552a967
- MD5 26ce6397748f826ea1244a93e30d4b8a
- SHA1 67385a147884f4925735725cd21f1a527f8a02c5
- SHA512 8c39222e2530b9962866bd5515974ba56701a58bdcbe36c8589d7b41f59309a3c1925c3ea7a1d7ea65f7ec10b3a4151900db5a5feaae17fbc0a1a538e5d01a6c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZuXSo:bgGYcA/53GAGgIvF9v2Zuio
- TLSH T1062366387FE62972E37BDFB586F691C6B93578223D16980D40CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH