Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/07/2026, 15:12
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe
- Size 1.0MB
- Sample260729-slbxcsad63
- SHA256 6a33f326d8be530ed60a00f8b9cf098f3a779769b6d7f64397a99e87dae84319
- MD5 d846a4bfe50e3aa3589bcb5a92e1d8db
- SHA1 8bed8d87788ee29d8e779bd736131116be7354e2
- SHA512 0422737723d1521108d48a4e2de1bce222275e081c91a47ac134aef26092c573b48d8732f701a0e8533ebbde7bf728b61a373682622cc8acdba0bd489bde07b4
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqK:bGbvflT/ZFIjBzhxwOgXKarY1iB/
- TLSH T1252509BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2108-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/4492-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4492-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4492 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 2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2108 wrote to memory of 4492 2108 2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-29_d846a4bfe50e3aa3589bcb5a92e1d8db_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108 -
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:4492
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 f8833efc1809cd87e915aef6eeca6463995aad204bc8989dec95bb1f229beeaa
- MD5 7a36405940b7d540b553b009f07bf94c
- SHA1 b7b4c1de37b050ff46f7cce7b1a8a5a95f0999e6
- SHA512 c55ec0e8b88ef9ab858d55290c1bf06100a23a02895e28cf59853a128fb60b3a223332edd4d560a1fae2dd7de241159b209190ef8f7e37bb8edae95da12fef2a
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq6:bGbvflT/ZFIjBzhxwOgXKarY1iBn
- TLSH T1172509BE74972645FE624C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH