Analysis
- user interaction
yes - max time kernel
1s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 10:11
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
masonclient.exe
Resource
win11ltsc2024-20260709-en
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
masonclient.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral3
Sample
masonclient.exe
Resource
win10ltsc2021-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral4
Sample
masonclient.exe
Resource
win11-20260513-en
8 signatures
150 seconds
General
- Target masonclient.exe
- Size 375KB
- Sample260804-l8brjsszhy
- SHA256 fa810de277e10d2e363ecc96eb78a89d3dea575c8d77e4defaccae9a02024037
- MD5 0daf28c65a82386e3c73e17f0b50258b
- SHA1 20a9b3784f7dc0a17323550810a110d6ae80b067
- SHA512 477b2191cfad9a1cd015070c73e4ef272dd0432e89031ec8006fe3eba325d6e5e7e43ece54854ca6bf0dbd3f376cf4ac4d4baf35732a86148004d8b477b32c20
- SSDEEP 6144:z1xYcygEBwZYI0V84n6vosRnnHC4MyGOjFi5YMS3mxTn5AfGRF:zw0EoYI6/n6gsRnnmyGOjFif5afGRF
- TLSH T16984F11176E0C572E8F7013148F5EAB98B3EF8750B515CEF238816B90E246D19A366EF
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- .NET Reactor proctector 64 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule behavioral1/memory/5876-1-0x0000000002CE0000-0x0000000002D64000-memory.dmp net_reactor behavioral1/memory/5876-5-0x0000000002EA0000-0x0000000002F24000-memory.dmp net_reactor behavioral1/memory/5876-125-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-116-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-113-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-109-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-99-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-87-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-77-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-72-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-6-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-65-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-61-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-9-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-17-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-63-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-132-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-129-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-123-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-121-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-119-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-117-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-111-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-107-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-105-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-103-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-101-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-97-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-95-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-93-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-91-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-89-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-85-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-83-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-81-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-79-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-75-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-73-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-70-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-67-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-60-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-57-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-53-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-51-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-49-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-45-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-41-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-39-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-37-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-35-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-33-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-31-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-29-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-27-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-25-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-23-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-21-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-19-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-15-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-13-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-11-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-7-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-55-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor behavioral1/memory/5876-47-0x0000000002EA0000-0x0000000002F1D000-memory.dmp net_reactor - System Location Discovery: System Language Discovery 1 TTPs 1 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 masonclient.exe