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
28/08/2026, 05:42
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe
- Size 29KB
- Sample260828-gegngser21
- SHA256 d47771ff8d600840152019e7238ec16126eed7fd34fb4fb710a001cd20ef21da
- MD5 faf42f5c80a94d8ce54bdeac59dfdf40
- SHA1 daba6e50ad94894e7e22390c64b42f52482752a6
- SHA512 8b8b62e1d8cde818c8577c7799a17a478359a3c62a02d809a0b5b6c509bca1f3a006064f98944428c922d815412875cdce910c5a8d12d70e8acb607f11088e87
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/mRVGt:bA74zYcgT/Ekd0ryfjLz/mqt
- TLSH T1C3D22B397BE72C61D1779FB555FBA082793ABC213E34484E68CF3388CD72751A84254A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2612-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e000000019cbf-13.dat CryptoLocker_rule2 behavioral2/memory/3452-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3452-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3452 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 2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_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 2612 wrote to memory of 3452 2612 2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-28_faf42f5c80a94d8ce54bdeac59dfdf40_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612 -
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:3452
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 29KB
- SHA256 e2fd624eb20df6ae34ec6972fc2805d2e5161480567c151993e096b56a39c9f6
- MD5 444e3ef3b9e9a01739b23f479db4dec6
- SHA1 bb1017ce0f9e0d1508d8ff15505949dfa28cce30
- SHA512 88e91deecf99755826a0242ebd238d57ed147ececed3c2ebc901564218ccf75f9c79e9a51a087335f1fcb2a66abcea3a4f73b055655477e8eea05ba0b507d524
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/mRVGc:bA74zYcgT/Ekd0ryfjLz/mqc
- TLSH T1ACD22C387BE73C61D1779FB555FBA082793ABC213E24484E68CF3388CD32751A84254A
- MD5 SHA1 SHA512 SSDEEP TLSH