Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 03:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe
- Size 26KB
- Sample260822-eczeeaep6w
- SHA256 6357dc8f20fd5ad4a46d351593de7046401d37c44913b5133fda517e907403c9
- MD5 99f329b8193ebdd1da6371bf8fed3e73
- SHA1 985edde20fba06b66822411d50d4a7b6694e83b6
- SHA512 e35c462a9d67ab746795d5b8c105452811d0e00f6c4c409810034975e04396168a9c9341276dd1b99f219581d16c27b2d3ecb0494a83bd60568e6fec57d63176
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUdSCXlc:bA74zYcgT/Ekd0ryfjqSh
- TLSH T11DC24B357BA33CA1D11AAEB115FBE102657FBC617B39498EACCE379CDA711916002882
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6044-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/5588-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5588-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5588 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 2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_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 6044 wrote to memory of 5588 6044 2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-22_99f329b8193ebdd1da6371bf8fed3e73_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6044 -
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:5588
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 26KB
- SHA256 02a0f74c1415d206ee7321962fcf654bdac1e53756961db08dfc7bceedc74576
- MD5 2998c4308d798b41340344ce43d7fcff
- SHA1 e4fcc889cb6e187d22645722dc9333974cbcb7a0
- SHA512 41e5ec3e0d57ac488cc1782453940499bcb76b44db87a173e3fc03c23e5bdad1839a28daaf90ed1384d0f0fd1b1bd02b980e0ff0514a09c1cbf82156de52c29e
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUdSCXle:bA74zYcgT/Ekd0ryfjqS3
- TLSH T1E7C25C357BE33CA1D11A9EB115FBE102757FBC617B39498EACCE379CDA721916002882
- MD5 SHA1 SHA512 SSDEEP TLSH