81c3266475403e3e168f06beca364126a72254bb131bbb5113a8e2d5f413426a

Analysis

max time kernel
118s
max time network
113s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 22:16

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General

Target
Installer.bat
Size 874B
Sample260802-162brashmh
SHA256 81c3266475403e3e168f06beca364126a72254bb131bbb5113a8e2d5f413426a
MD5 c14ed9eb48bb0701147fcfe1784fe6d6
SHA1 abbf7713e0ea240e269fe17de3cfd093dfa8568a
SHA512 645b452975b4f3e6c0baa4c7bdf0112b5010c57522edc042a8a2f7b1b2c4e0f44903a8f18d68e551647f6fa695160a015db5622b968b8937942eb79b7ee2fca1
TLSH
T1AF11C019AB9EA170949A85A026AD66BDE30592C74327CA951E6370CD3157BCC121F3E2
MD5 SHA1 SHA512 TLSH

Score

6^/10

execution persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-189034102-168398478-1159367937-1000\Software\Microsoft\Windows\CurrentVersion\Run\BackgroundService = "\"C:\\Users\\Admin\\AppData\\Roaming\\LocalServiceLocal\\launch.vbs\""	reg.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs

execution

Visual Basic

T1059.005

pid	Process
4332	wscript.exe
1100	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5776	cmd.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5776 wrote to memory of 6024	5776	cmd.exe	90
PID 5776 wrote to memory of 4332	5776	cmd.exe	91

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Installer.bat"
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5776
- C:\Windows\system32\reg.exe
  reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "BackgroundService" /t REG_SZ /d "\"C:\Users\Admin\AppData\Roaming\LocalServiceLocal\launch.vbs\"" /f
  2⤵
  - Adds Run key to start application
  PID:6024
- C:\Windows\system32\wscript.exe
  wscript.exe "C:\Users\Admin\AppData\Roaming\LocalServiceLocal\launch.vbs"
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  PID:4332

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\LocalServiceLocal\launch.vbs"
1⤵
- Executes a VBScript file via the Windows Script Host.
PID:1100

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

launch.vbs

Path C:\Users\Admin\AppData\Roaming\LocalServiceLocal\launch.vbs
Size 175B
SHA256 cfe335fc1ba3bad667696ba62d6406980dabf6adc7aa7d8c7e2fcd36a4259640
MD5 59fd13019c3be31018dbe30d73a6e942
SHA1 7ac4a5c54492f2037cb425443115786e31585b36
SHA512 708cd98ca8d2f788c170881521d36cc9ff46b706dd9cfbfa29ec77f66d0b8181b9cbe248fb6a7ced2ec3b21c67889c352f31f5d5abc5dadc8e996e542638a54e
TLSH
T1EAC080149AEDC638D85DC0FF07F25148D364D947112679580740E44C03505581332223
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads