b2a91ae280383bc222902d274fca8eb9e13aca1ffc0730218ef75f34e644ab02

Analysis

user interaction
yes
max time kernel
8s
max time network
10s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
28/09/2026, 18:54

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Reason

Machine shutdown

General

Target
33.bat
Size 3KB
Sample260928-xkaecssvbx
SHA256 b2a91ae280383bc222902d274fca8eb9e13aca1ffc0730218ef75f34e644ab02
MD5 154e21407834e182ad74b4b83196f4fe
SHA1 c7eedc104cba44a1ca894918f0dff3e6e776bb02
SHA512 301467492fc5bff6f47bfd98d08e0fdbdbfd050685323d2d457e1156ef592c24f6217d51a1b516c9921a9f1d2976501099b0cb4fb4517fc799aeccbe9b2168a8
TLSH
T19C51A6B1B433817705BEEE85A4A26195F36094CF24446E7EB50FC2344F795C161FEAE8
MD5 SHA1 SHA512 TLSH

Score

3^/10

execution

Malware Config

Signatures

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
1936	cmd.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "188"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5004	shutdown.exe
Token: SeRemoteShutdownPrivilege	5004	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4648	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2604	1936	cmd.exe	88
PID 1936 wrote to memory of 3892	1936	cmd.exe	89
PID 1936 wrote to memory of 5004	1936	cmd.exe	90

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\33.bat"
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\system32\chcp.com
  chcp 65001
  2⤵
  PID:2604
- C:\Windows\system32\calc.exe
  calc
  2⤵
  PID:3892
- C:\Windows\system32\shutdown.exe
  shutdown -s -t 0 -c "System Breached. Goodbye!"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5004

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a35855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4648

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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