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
06/08/2026, 22:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe
- Size 47KB
- Sample260806-2actysce52
- SHA256 a6244604fe83ca123773a077f4181663432712d928f440f7b28999185c71e388
- MD5 f9aa13010a55c526fadf2eb0ff440581
- SHA1 7ff3039dce05c82e625100a7f2b283279e197f61
- SHA512 af48044cb0577d6d1a48b0ceda0732f62c05d1273bc01bb82672f8e0128d34458052ffe04bc6434a4edf4caf3452c46e97ec4b96cfcc9fae83eaadf94caa8043
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCf:bgGYcA/53GAGgIvF9v2ZZCf
- TLSH T1CD2355387FE66972E37BCFB586F651C6B93578223D16980D40CA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4324-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b714-13.dat CryptoLocker_rule2 behavioral2/memory/2512-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2512-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2512 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 2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4324 wrote to memory of 2512 4324 2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-06_f9aa13010a55c526fadf2eb0ff440581_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4324 -
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:2512
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 52da33be750866f959744ef907adc0198f0c559c12c138b4221ff334b42dda0d
- MD5 b71ca39633c444df8f3be65e7098edfc
- SHA1 f231054a87c88b7899257c6606564fd60c6d1975
- SHA512 659b97d5f555864f1fa8ef30896381d635b4c76de09f88630f69b5547723e597670ee3fe411e3c503db6271ea846b930550c7ba80bd8672d9ba6cafa56319f7b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCo:bgGYcA/53GAGgIvF9v2ZZCo
- TLSH T1F72355387FE66932E37BCFB586F651C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH