521237d8ce53cbe6b25547e6f8d4bbf31e2c88390d1ddb7d6cf505158da6bded

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
21/04/2026, 07:35

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General

Target
$PLUGINSDIR/nsis_plugin.dll
Size 2.1MB
Sample260421-jesf4ady5x
SHA256 521237d8ce53cbe6b25547e6f8d4bbf31e2c88390d1ddb7d6cf505158da6bded
MD5 5ff6a32380d7093b4d3b2ce3707f969a
SHA1 fd9c3f8e633591012928d2edff2d0ac01923c4ce
SHA512 1e55415989c676da91f9d8f5f7335dfb20350fe4df46a8d4ee76f54dd8fd0358bec8f6d3040f1b6dc8aff9fa2947502e8f27b00f0adf38a202e80ba946152bd9
SSDEEP 24576:YvUMT3dDIu7KHxC4QbOTQJxY5MeFUBCC2fycqEF8ZsVDJfSZYES/Y5uH3o6euP0w:wtMu7KHx/1TEeDUyES/cw3peuP0w
TLSH
T1A1A58D137552F0B9C997A3B0B23DB6782A2952504B1089D792E4BDF43AF1AC11A3377F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3204	1836	WerFault.exe	80

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.

discovery

System Language Discovery

T1614.001

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 4892 wrote to memory of 1836	4892	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis_plugin.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis_plugin.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1836
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 592
    3⤵
    - Program crash
    PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1836 -ip 1836
1⤵
PID:2944

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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