Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
15/07/2026, 04:32
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe
- Size 46KB
- Sample260715-e5y94sbx2p
- SHA256 159700e5dd2bda56d98e04c09edeb8a87870d3785dd134245c4a5c1ff991d4c5
- MD5 9d0270f643cecd29f3fe9c99c20ab9ac
- SHA1 db472bf78215ea59b6e0de73c8465535fcf1dbb0
- SHA512 a56bf9dce2fe3afe8635fefadaa36ca863d5fa1c9c06f2455f08965c0a3465723c7079a9cc10262561e8488f45e514560d4900bde195d6f5a5f05f84ff4e458e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEh/:bgGYcA/53GAGgIvF7Ep
- TLSH T1EC2332387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5816-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b88f-13.dat CryptoLocker_rule2 behavioral2/memory/3864-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3864-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3864 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 2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_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 5816 wrote to memory of 3864 5816 2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-15_9d0270f643cecd29f3fe9c99c20ab9ac_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5816 -
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:3864
-
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 c1d8dfb38b995a18a42b43e105772b895439f3162de4fa98611ee5d09786a18d
- MD5 207f8b61edf47cf32dee50ffdbb19445
- SHA1 23ec6b1d472352564d489c78e6a8cfe6d30f0a45
- SHA512 817f6155d1acb99066179f23cbc47438aac46c73975746d58660c361110bf725a362112690acedf1c94fbb121f823ad9b265ed33a7885e907980a6f556fbdb7c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhq:bgGYcA/53GAGgIvF7EY
- TLSH T1EB2332387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH