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
08/09/2026, 04:27
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe
- Size 46KB
- Sample260908-e25ygs1grf
- SHA256 f98e00a8e8060c7880ca53ac9bfdc1f541b7a13f01df045dceea2c189410bfed
- MD5 d9422b378f279ebbb153364dcbebd6c7
- SHA1 35a2088053f90a7bf61dee39af37beb3ef6872ca
- SHA512 c191e2d47e1e5a2f1fac08a584e79ff6a89fd965c93db6a9c7353f0016a8b43e16a0e206a14ed14be857ef3d957b126c6f09bcb0d999b53114b1a2ea0d234146
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTUO:bgGYcA/53GAGgIvFG
- TLSH T18B2355387FE62972E37BDF7586F691C6B97578223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3116-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000011380-13.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 2026-09-07_d9422b378f279ebbb153364dcbebd6c7_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 3116 wrote to memory of 1088 3116 2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-07_d9422b378f279ebbb153364dcbebd6c7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116 -
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 46KB
- SHA256 4b7bf0d416afe0e9d4dc32e4433259bba4757710cff00233b6bc33a1f1f4dc64
- MD5 35552c9c655d7a4d61a389edc22e6148
- SHA1 535523c9d96a1ee3246796602b76403c688c5766
- SHA512 ce1fa1a38fef52f447f4b3ce22776a18765af12cd29d8e90bde0fd4bf2c6eacf029e6be45b55974e2f1f71f63f0586a41d5af2c06c1933e797351eeb2936dd1e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTUs:bgGYcA/53GAGgIvFk
- TLSH T15E2355387FE62972E37BDF7586F691C6B97578223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH