Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/07/2026, 03:19
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe
Resource
win11ltsc2024-20260706-en
5 signatures
150 seconds
General
- Target 2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe
- Size 40KB
- Sample260707-dvcspady9k
- SHA256 94c7f836fa3355f466a88552701778ef39e313641f017e506846bd222066295c
- MD5 6666bea395307fef0e60c5f6fef9b7e3
- SHA1 c22af0c70be1fd18641a588819382462b8b0d908
- SHA512 9f8595d398074be9adde5095daf11fcadeb155294c00d5842162daff9f8f7099894d9922446f21b250d44165ef7029ca7558c52f3467b2b644f9fd8d4e4ebc35
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCo:bgGYcA/53GAGgIvFF
- TLSH T1AE1385387BE62972E37BDFB586F791C27975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4440-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000900000001b802-13.dat CryptoLocker_rule2 behavioral2/memory/2456-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2456-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2456 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4440 wrote to memory of 2456 4440 2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-06_6666bea395307fef0e60c5f6fef9b7e3_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4440 -
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:2456
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 40KB
- SHA256 9ba7fa8e03a21cc9391527bb08b98f12b88b4fa0119f72edfa706b6c665b28f9
- MD5 236e7dcbbe642d1a5f99d5a0574259c0
- SHA1 3179eb7ed6689f2b9bdb80e75ccdbae47d3e5d2e
- SHA512 34de0f38fb255567366af32224708bba6f14aecc47c24531f7f0ee711277ad6673a7441f133a92baa87fd1b0174b6b160ee784c45b3c9243920588a17bc39c2f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCR:bgGYcA/53GAGgIvFU
- TLSH T1141375387BE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH