Analysis
- max time kernel
149s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/07/2026, 18:29
Static task
static1
Behavioral task
behavioral1
Sample
7za.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
7za.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
7za.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
7za.exe
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral5
Sample
7zxa.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
7zxa.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral7
Sample
start.cmd
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
start.cmd
Resource
win11ltsc2024-20260709-en
General
- Target 7zxa.dll
- Size 161KB
- Sample260716-w487csft51
- SHA256 6b4888207c46c23d2d4e4eace8a2db01711692bc7d4bb93f3750bc41e91bb73c
- MD5 72dcc77ba25ebc4984d959a78c8646d5
- SHA1 50347fcdb44426918d2eeafd5ff8ca9385fbbb0b
- SHA512 1ff7c0027802e65d5d668f2c7d90b71d720c964e7da03c2a8dc8e0b8456bfa8658ca57de17e66a1ebaaef5bf0be1806188813e1da608b6861bc4d8b6a48f8876
- SSDEEP 3072:ifGI+bVn1rLT8VxY9ZcHwDLULRpqnhlGZcQU6aRg+NmVRmCHOtGgYckP:3eK7QwUqnT6aRfmVR5SYz
- TLSH T16FF3BD20B7BAC0F9C70A3231991E7B7752BAE38D4B0059D76350EE9A2E355D5E33C129
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1072 456 WerFault.exe 86 - 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 rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4428 wrote to memory of 456 4428 rundll32.exe 86
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7zxa.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4428 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7zxa.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:456 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 456 -s 6003⤵
- Program crash
PID:1072
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 456 -ip 4561⤵PID:3112