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, 07:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe
- Size 47KB
- Sample260802-jsxyqsfd28
- SHA256 a19e35f86ffa154acac0f8587b6513850e8397a9b642d0ea62aa007a08c50d43
- MD5 d307a4cd249d943f2862f9cd8847a5eb
- SHA1 9827409a694faaeed55fe1219e1485d27e8f5d10
- SHA512 388b00950892a2ed34b8bb0eb220dde16d05f26617616665c846ec8094bc9024f731ef52bb2e2c2b609f79f8358748b565564690f6011e69e8183b5d100de417
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuv:bgGYcA/53GAGgIvF7Ekv
- TLSH T1092322387BE52932E37BDFB586F691C6B975B8223D16980D40CA43444C33F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2484-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a00000001b89b-13.dat CryptoLocker_rule2 behavioral2/memory/5080-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5080-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5080 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_d307a4cd249d943f2862f9cd8847a5eb_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 2484 wrote to memory of 5080 2484 2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_d307a4cd249d943f2862f9cd8847a5eb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484 -
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:5080
-
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 0ac3dbec080438962aa6829df1cfb63fb1eac3fb98c339dc7c4afbbb4ced451d
- MD5 c69685d71eb1b5d2ac447fd31fc89474
- SHA1 00784355160bcbca842678302c8a201040f8f44c
- SHA512 c2672e4b0e3be507b9e61a989e2cace4620bf39f7df709bf9d85455a4ca9882fd1917ef73c915d5d965f4fc63804bf0cc87a4c3fbc0449d5de02a096437c4a06
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuI:bgGYcA/53GAGgIvF7EkI
- TLSH T1702331387BE52932E37BDFB586F691C6B975B8223D16980D40CA43444C33F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH