657672be6ea8a72fb4765074cfda019fb8fa4eacb3238a416c186f53919d7cf4

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/07/2026, 12:24

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General

Target
$PLUGINSDIR/InstallOptions.dll
Size 32KB
Sample260704-plefpsfs9v
SHA256 657672be6ea8a72fb4765074cfda019fb8fa4eacb3238a416c186f53919d7cf4
MD5 1f24c9859dd6639d0c752d7b96a2442d
SHA1 7014f711d1d06cdc3d5bae678aad29e8b9ebcfd2
SHA512 7a488b27031e76873623142e66355d45a2bcd13d0fe235b93db1f92bb5c6658c4b689131672cacdad7b5a3204fca3fdbe020066f442b3a0db17fcf85f3eabf96
SSDEEP 384:PnpIqrPKteJM6zAzlq0BnPr681qrSYc/RHXCtk6tztN4Ykvdv7WbHwyx1I83cwTv:PpI8yU0tmC/hS3NfgvtQt28PEslxo
TLSH
T1FCE21A19FE42A5F6C233A5705AEBD3BBCB04B437D8234F1AEE124B4AB9675B1510D211
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4680	4448	WerFault.exe	83

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 4124 wrote to memory of 4448	4124	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstallOptions.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstallOptions.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 636
    3⤵
    - Program crash
    PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4448 -ip 4448
1⤵
PID:8

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/4448-0-0x0000000074F90000-0x0000000074FA4000-memory.dmp

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