Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 16:10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe
- Size 42KB
- Sample260817-tmf35sthpe
- SHA256 76aaedd8082221ade9dcc18763eb2bd5b39c30c06035050152107b0df723ad3f
- MD5 32515f6f50caeefa6cdfdfe7a3b1a744
- SHA1 d15413b289e378fde44c1aad7e9b29873633e35e
- SHA512 70ef02fd25e4fe94adb469e9070a7976fbaf2545e555a4d2d42188808b00029f553e98981402339385ba44d0a5819e39bd051f13ba06022dec7c2560ba6d6032
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCE:bgGYcA/53GAGgIvFx
- TLSH T1F91374387BE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2128-8-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b871-13.dat CryptoLocker_rule2 behavioral2/memory/3364-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3364-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3364 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 2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_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 2128 wrote to memory of 3364 2128 2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-17_32515f6f50caeefa6cdfdfe7a3b1a744_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128 -
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:3364
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 0356838c8f0e32353c584dd1e90ab2c8727057f673b26f85115f2ea116ad9dd1
- MD5 34f0ed126ed197e38740041aa766a8dc
- SHA1 ef7fd1ca4ace554c86bb63ed42138e94c9de439a
- SHA512 c9f3d6d10f7ba0a098ad68a51fd7f7b9c88ca01101b7959dd497f59711a7c8318194cc37b108a83c68b01d5466060819b7c8769ceb3ce6f84a1b3ce82d76439f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC0:bgGYcA/53GAGgIvFp
- TLSH T1931374387BE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH