4d3aa3ecd16a6ba46a9d6c0bdacdcd9dce70d93585941a94e544696e3e6f7d92

Analysis

geolocation tags

nanew-jerseynorth-americaunited-statesususa
max time kernel
15s
max time network
17s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
20/07/2026, 02:03

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Reason

Machine shutdown

General

Target
MrsMajor-main/mrsmajorlauncher.vbs
Size 3KB
Sample260720-cgp1escs8m
SHA256 4d3aa3ecd16a6ba46a9d6c0bdacdcd9dce70d93585941a94e544696e3e6f7d92
MD5 e3fdf285b14fb588f674ebfc2134200c
SHA1 30fba2298b6e1fade4b5f9c8c80f7f1ea07de811
SHA512 9b0bfbb07c77d9e9979a6c0f88b0a93010133f7dd3cf01e1de5dfbe812a5ed920e916d16d6a32fe21b9ee4b5425e61a616ded1aeeb35a410d4f77c0f9392ed0a
TLSH
T1E5710F4CA963CA3FD3F2718106DA9F06A779A538F2A14D7A709CE34085E33DC54A59CE
MD5 SHA1 SHA512 TLSH

Score

10^/10

defense_evasion discovery evasion execution persistence trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, wscript.exe \"C:\\Program Files\\mrsmajor\\Launcher.vbs\""	WScript.exe

Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	WScript.exe

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	WScript.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\disableregistrytools = "1"	WScript.exe

Disables Task Manager via registry modification
defense_evasion

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\International\Geo\Nation	WScript.exe

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\D:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\D:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe

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

execution

Visual Basic

T1059.005

pid	Process
708	WScript.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\mrsmajor\Doll_patch.xml	WScript.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Modifies Control Panel 4 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\Cursors\AppStarting = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\Cursors\Hand = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\Cursors	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\Cursors\Arrow = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	WScript.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	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\EnableWindowColorization = "199"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
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\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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\ColorizationAfterglow = "3288365271"	LogonUI.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp3file\DefaultIcon	WScript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\DefaultIcon	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mp3file\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file\DefaultIcon	WScript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\DefaultIcon	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	WScript.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1436	wmplayer.exe
Token: SeCreatePagefilePrivilege	1436	wmplayer.exe
Token: SeShutdownPrivilege	2872	unregmp2.exe
Token: SeCreatePagefilePrivilege	2872	unregmp2.exe
Token: SeShutdownPrivilege	4616	shutdown.exe
Token: SeRemoteShutdownPrivilege	4616	shutdown.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1436	wmplayer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3696	LogonUI.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 708 wrote to memory of 1436	708	WScript.exe	82
PID 1436 wrote to memory of 2448	1436	wmplayer.exe	83
PID 2448 wrote to memory of 2872	2448	unregmp2.exe	85
PID 708 wrote to memory of 4616	708	WScript.exe	95

System policy modification 1 TTPs 2 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system	WScript.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	WScript.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MrsMajor-main\mrsmajorlauncher.vbs"
1⤵
- Modifies WinLogon for persistence
- Modifies Windows Defender DisableAntiSpyware settings
- UAC bypass
- Disables RegEdit via registry modification
- Checks computer location settings
- Modifies system executable filetype association
- Executes a VBScript file via the Windows Script Host.
- Drops file in Program Files directory
- Modifies Control Panel
- Modifies registry class
- Suspicious use of WriteProcessMemory
- System policy modification
PID:708
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" "C:\Program Files\mrsmajor\def_resource\f11.mp4"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Windows\SysWOW64\unregmp2.exe
    "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2448
  - - C:\Windows\system32\unregmp2.exe
      "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
      4⤵
      Enumerates connected drives
      Suspicious use of AdjustPrivilegeToken
      PID:2872
- C:\Windows\System32\shutdown.exe
  "C:\Windows\System32\shutdown.exe" -r -t 03
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4616

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:4828

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a26055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3696

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

CurrentDatabase_400.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Size 640KB
SHA256 5f4be7e52844ece816694098628a51f3e2727540234352ff23b048213b83488a
MD5 123fb4762f168f15b282e71a89439cd2
SHA1 50047bec9fee0df28faaa86e38ba81c0df0788de
SHA512 2c5d6cdb47df57bc451279d8dd07714978689ccaa3020de692a29be9dc53ac5e953cfdfab71a253fb7c0969ced071661565954657151b9836ad5861801bbf9a9
SSDEEP 768:5f0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr1vfEwPRzitFrzcooJImdba5aSt3Y:569tQeoVYocxYCutFCJGAKt2hZ
TLSH
T1E5D40C3BA470A098DF3C35B1E2AD6B4CBD72641A12E006421F74B57F7A237D8DA0B5E5
MD5 SHA1 SHA512 SSDEEP TLSH

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WMSDKNS.XML.bak

Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak
Size 9KB
SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
MD5 7050d5ae8acfbe560fa11073fef8185d
SHA1 5bc38e77ff06785fe0aec5a345c4ccd15752560e
SHA512 a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b
SSDEEP 96:/YkZRAF6zyHUhm77yB1pZYCEnfHrHH7B6xTGH+YCLV3zwULJEYCJWyHBt3zwFRh+:/2FV0bBPCfUdY
TLSH
T10022A2A194818DD206290E275DB95C0DDA8CE9D3832C24997C9EEB7FDFB1C00355FB6A
MD5 SHA1 SHA512 SSDEEP TLSH

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wmsetup.log

Path C:\Users\Admin\AppData\Local\Temp\wmsetup.log
Size 1KB
SHA256 a76cbae0ec7fb42e426816960d9d0004c81d465b694dddc2082d16a24eb7f867
MD5 f04b9b2f2204a33e3304f712c10cd7ba
SHA1 5b9f05eed9ca99f90304e15bfd820b5c19d8bbac
SHA512 0aec466e522e0eba9ba090b85f2aaeb0fae07267b56d04302dee163480feab5e2fe037971df08aff790b0205dabb0dd15af5806d1f1608fef14e2a0d668b1c2b
TLSH
T109212C570A8A98B1C9E103E31DDC8E2573B7C7CE8750D566B289903D4C0116D6B3E56D
MD5 SHA1 SHA512 TLSH

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MRS MAJOR WANTS TO MEET YOU 5.txt

Path C:\Users\Admin\Desktop\MRS MAJOR WANTS TO MEET YOU 5.txt
Size 27B
SHA256 afeebe824fc4a955a673d3d8569a0b49dfbc43c6cc1d4e3d66d9855c28a7a179
MD5 e20f623b1d5a781f86b51347260d68a5
SHA1 7e06a43ba81d27b017eb1d5dcc62124a9579f96e
SHA512 2e74cccdd158ce1ffde84573d43e44ec6e488d00282a661700906ba1966ad90968a16c405a9640b9d33db03b33753733c9b7078844b0f6ac3af3de0c3c044c0b
MD5 SHA1 SHA512

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads