ba99dd0c80e47d1f4be076cc92c6420ee4a7cdbd398e91480c204f721ec8c44b

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
23/10/2026, 06:38

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General

Target
$PLUGINSDIR/NSISdl.dll
Size 149KB
Sample261023-hefa4aas4t
SHA256 ba99dd0c80e47d1f4be076cc92c6420ee4a7cdbd398e91480c204f721ec8c44b
MD5 5dd63c0ec231c375a3527cf08d1cd7bf
SHA1 b6d379584b98bfc878b718ec4f52ac696e6b63f6
SHA512 8d21ab2b63ffb70a7414366979fee047c116e1155aac12f9b7a36523a6355d5a83cdaa3391341d683a7a5e06e7fb7eca8a002abdf5f0af2d79a90185e458f465
SSDEEP 3072:9BL1eMHYcmrsBj54f3ku/parMVcWS/QYUnSf8:9BLsC7C3zharMVZS/pUn
TLSH
T1FDE35D5DFA0350F1F2A761B5049ED7FB422874058527AEB2FF8B9E1ABC72B51142428E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4496	3516	WerFault.exe	84

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 5084 wrote to memory of 3516	5084	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\NSISdl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\NSISdl.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3516
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 628
    3⤵
    - Program crash
    PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3516 -ip 3516
1⤵
PID:5020

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

Replay Monitor

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Downloads

memory/3516-0-0x00000000751C0000-0x00000000751F2000-memory.dmp

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