Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
16/07/2026, 16:01
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe
- Size 41KB
- Sample260716-tgem5acw71
- SHA256 4ec1aae8d15c15d94dfb31761f90d66ad224c79c1e3a4af95d0dae1d98490070
- MD5 e6818ea1abab124357dbaa62d18df437
- SHA1 c5def81cad48bc702a547bb735eb75e94626c122
- SHA512 582a2118b5fb34940c513ee2a9469c53d8f88be21491c6e87574766c5593fbd837605fe95164aadb71f98195bc90591a798732b6b9d3d99eaeedd7cfef364a62
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCy:bgGYcA/53GAGgIvFr
- TLSH T1F31374387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F61EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4252-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b858-13.dat CryptoLocker_rule2 behavioral2/memory/1088-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1088-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1088 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 2026-07-16_e6818ea1abab124357dbaa62d18df437_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 4252 wrote to memory of 1088 4252 2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-16_e6818ea1abab124357dbaa62d18df437_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252 -
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:1088
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 73372bb72ebb2b53028a03339b1ae2bb639fcc45203fab9bd5549612af1a8d93
- MD5 ecfb13f80b2b503591322849e612b2fd
- SHA1 6f66e504b5e99363fb0162c731acc1cf55c3c560
- SHA512 b3668c033900860fc6981012a8a67c606d589b813052c8622f443f318c2343e4cc6d74e4986d0dd91b4562f5d5473eb24351834d0a37ecef5e038058bb36dd29
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC2:bgGYcA/53GAGgIvFP
- TLSH T15A1375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F61EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH