Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/07/2026, 13:43
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe
- Size 42KB
- Sample260728-q1krpsyvgx
- SHA256 6ff5e4ba90d94b2cf6f646d9f69592438446d5f6c85f1068d64ee4cf56d34832
- MD5 65145ae1180a8c266990ba3530114746
- SHA1 c7208814aaf4db69354a11dd48f811deca9f5bc2
- SHA512 48d43691e46a5006fd94e97996300487add3fb1f606ce546fbb1502704d16ac8835ea9b072e251bb4c3f1d433bf729f1af6e25fd9f7ad70a488a9644cc8da3cb
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCo:bgGYcA/53GAGgIvFN
- TLSH T19F1374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1556-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b83c-13.dat CryptoLocker_rule2 behavioral2/memory/3732-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3732-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3732 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 2026-07-28_65145ae1180a8c266990ba3530114746_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 1556 wrote to memory of 3732 1556 2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-28_65145ae1180a8c266990ba3530114746_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1556 -
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:3732
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 ea3c5f84a08896f018055126f60fc3f09af0bd59914efce8e3fe4a992864aa0e
- MD5 59beee4ea4e8ad9f34d02988da24ecd4
- SHA1 ab35e8de7a2c729e0354addf8a976bcb3196646c
- SHA512 dc28aa26d4231c0bb22edbf59485270c60ebd72bc09303a0207abcb9a2977fbce3c313301c9fb8f582f48cdd128f9155784f9aef6cbb0cff85c007ae1b0ad204
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCX:bgGYcA/53GAGgIvF2
- TLSH T1351374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH