hxxps://github[.]com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3[.]0[.]exe

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

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

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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\disableregistrytools = "1"	wscript.exe

Disables Task Manager via registry modification
defense_evasion

Downloads MZ/PE file 1 IoCs

flow	pid	Process
94	5296	msedge.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	BossDaMajor.exe

Executes dropped EXE 1 IoCs

pid	Process
5732	BossDaMajor.exe

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

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

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	wmplayer.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

Peripheral Device Discovery

T1120

System Information Discovery

defense_evasion privilege_escalation

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
89	raw.githubusercontent.com
90	raw.githubusercontent.com
91	raw.githubusercontent.com
92	raw.githubusercontent.com
93	raw.githubusercontent.com
94	raw.githubusercontent.com

Drops file in Program Files directory 16 IoCs

description	ioc	Process
File created	C:\Program Files\mrsmajor\CPUUsage.vbs	wscript.exe
File created	C:\Program Files\mrsmajor\def_resource\f11.mp4	wscript.exe
File created	C:\Program Files\mrsmajor\MrsMjrGui.exe	wscript.exe
File created	C:\Program Files\mrsmajor\reStart.vbs	wscript.exe
File created	C:\Program Files\mrsmajor\def_resource\@Tile@@.jpg	wscript.exe
File created	C:\Program Files\mrsmajor\Launcher.vbs	wscript.exe
File created	C:\Program Files\mrsmajor\MrsMjrGuiLauncher.bat	wscript.exe
File opened for modification	C:\Program Files\mrsmajor\CPUUsage.vbs	wscript.exe
File created	C:\Program Files\mrsmajor\default.txt	wscript.exe
File created	C:\Program Files\mrsmajor\Icon_resource\SkullIco.ico	wscript.exe
File created	C:\Program Files\mrsmajor\def_resource\creepysound.mp3	wscript.exe
File created	C:\Program Files\mrsmajor\def_resource\Skullcur.cur	wscript.exe
File created	C:\Program Files\mrsmajor\DreS_X.bat	wscript.exe
File created	C:\Program Files\mrsmajor\mrsmajorlauncher.vbs	wscript.exe
File created	C:\Program Files\mrsmajor\WinLogon.bat	wscript.exe
File created	C:\Program Files\mrsmajor\Doll_patch.xml	wscript.exe

Drops file in Windows directory 2 IoCs

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

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

Create Process with Token

T1134.002

pid	Process
464	wscript.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 3 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	BossDaMajor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	msedge.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	msedge.exe

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe

Modifies Control Panel 4 IoCs

defense_evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\Cursors	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\Cursors\Arrow = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\Cursors\AppStarting = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\Cursors\Hand = "C:\\Program Files\\mrsmajor\\def_resource\\skullcur.cur"	wscript.exe

Modifies data under HKEY_USERS 18 IoCs

description	ioc	Process
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\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133867997868406383"	msedge.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\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "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\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	msedge.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	msedge.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	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 = "179"	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\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp3file\DefaultIcon	wscript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file\DefaultIcon	wscript.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-3975168204-1612096350-4002976354-1000\{DB7DB407-3BD8-440E-A003-C03DB0BC97E1}	msedge.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-3975168204-1612096350-4002976354-1000\{2F168F6A-97D5-4A41-B78B-89AA6715F1AC}	msedge.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\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\mp3file\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	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\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon\ = "C:\\Program Files\\mrsmajor\\Icon_resource\\SkullIco.ico"	wscript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mp4file	wscript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\DefaultIcon	wscript.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-3975168204-1612096350-4002976354-1000\{1C00259C-9735-4849-82C5-B1A513B604CE}	wmplayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3472	wmplayer.exe
Token: SeCreatePagefilePrivilege	3472	wmplayer.exe
Token: SeShutdownPrivilege	1560	unregmp2.exe
Token: SeCreatePagefilePrivilege	1560	unregmp2.exe
Token: 33	4444	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4444	AUDIODG.EXE
Token: SeShutdownPrivilege	3472	wmplayer.exe
Token: SeCreatePagefilePrivilege	3472	wmplayer.exe
Token: SeShutdownPrivilege	4936	shutdown.exe
Token: SeRemoteShutdownPrivilege	4936	shutdown.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
3472	wmplayer.exe
5076	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe
5076	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5036	LogonUI.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 876	5076	msedge.exe	85
PID 5076 wrote to memory of 876	5076	msedge.exe	85
PID 5076 wrote to memory of 5296	5076	msedge.exe	87
PID 5076 wrote to memory of 5296	5076	msedge.exe	87
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 664	5076	msedge.exe	89
PID 5076 wrote to memory of 3436	5076	msedge.exe	88
PID 5076 wrote to memory of 3436	5076	msedge.exe	88
PID 5076 wrote to memory of 3436	5076	msedge.exe	88
PID 5076 wrote to memory of 3436	5076	msedge.exe	88
PID 5076 wrote to memory of 3436	5076	msedge.exe	88

System policy modification 1 TTPs 2 IoCs

defense_evasion

Modify Registry

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:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --single-argument https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3.0.exe
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.99 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.69 --initial-client-data=0x23c,0x240,0x244,0x238,0x2e4,0x7ff8d7eaf208,0x7ff8d7eaf214,0x7ff8d7eaf220
  2⤵
  PID:876
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --string-annotations --always-read-main-dll --field-trial-handle=1984,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=2340 /prefetch:3
  2⤵
  - Downloads MZ/PE file
  PID:5296
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --string-annotations --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=2316,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=2312 /prefetch:2
  2⤵
  PID:3436
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=2412,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=2844 /prefetch:8
  2⤵
  PID:664
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --field-trial-handle=3528,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=3572 /prefetch:1
  2⤵
  PID:4480
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --field-trial-handle=3556,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=3596 /prefetch:1
  2⤵
  PID:4492
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=4852,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=4992 /prefetch:8
  2⤵
  PID:1192
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=4832,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=5084 /prefetch:8
  2⤵
  PID:816
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=PooledProcess2 --lang=en-US --service-sandbox-type=utility --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=5572,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=5568 /prefetch:8
  2⤵
  PID:1084
- C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=5652,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=5596 /prefetch:8
  2⤵
  PID:3940
- C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=5652,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=5596 /prefetch:8
  2⤵
  PID:4344
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --lang=en-US --service-sandbox-type=collections --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6080,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6084 /prefetch:8
  2⤵
  PID:4772
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --pdf-upsell-enabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --always-read-main-dll --field-trial-handle=6272,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6284 /prefetch:1
  2⤵
  PID:3296
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6092,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6484 /prefetch:8
  2⤵
  PID:4508
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6652,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6680 /prefetch:8
  2⤵
  PID:5708
- C:\Users\Admin\Downloads\BossDaMajor.exe
  "C:\Users\Admin\Downloads\BossDaMajor.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5732
- - C:\Windows\system32\wscript.exe
    "C:\Windows\sysnative\wscript.exe" C:\Users\Admin\AppData\Local\Temp\FDA9.tmp\FDAA.vbs
    3⤵
    - Checks computer location settings
    - Drops file in Program Files directory
    PID:3268
  - - C:\Windows\System32\notepad.exe
      "C:\Windows\System32\notepad.exe"
      4⤵
      PID:2128
  - - C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Program files\mrsmajor\mrsmajorlauncher.vbs" RunAsAdministrator
      4⤵
      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
      Drops file in Program Files directory
      Access Token Manipulation: Create Process with Token
      Modifies Control Panel
      Modifies registry class
      System policy modification
      PID:464
    - - 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"
        5⤵
        Drops desktop.ini file(s)
        Enumerates connected drives
        System Location Discovery: System Language Discovery
        Modifies registry class
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of FindShellTrayWindow
        
        PID:3472
      - C:\Windows\SysWOW64\unregmp2.exe
        
        "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4908
        
        C:\Windows\system32\unregmp2.exe
        
        "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
        7⤵
        Enumerates connected drives
        Suspicious use of AdjustPrivilegeToken
        
        PID:1560
    - - C:\Windows\System32\shutdown.exe
        
        "C:\Windows\System32\shutdown.exe" -r -t 03
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4936
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6536,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6016 /prefetch:8
  2⤵
  PID:4452
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6400,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6808 /prefetch:8
  2⤵
  PID:3140
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=6508,i,14598460036914008737,18424566647529535104,262144 --variations-seed-version --mojo-platform-channel-handle=6852 /prefetch:8
  2⤵
  PID:1764
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies data under HKEY_USERS
  - Modifies registry class
  PID:2488
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.99 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.69 --initial-client-data=0x240,0x244,0x248,0x23c,0x18c,0x7ff8d7eaf208,0x7ff8d7eaf214,0x7ff8d7eaf220
    3⤵
    PID:6072
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --string-annotations --always-read-main-dll --field-trial-handle=1768,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=2260 /prefetch:3
    3⤵
    PID:5960
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --string-annotations --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=2232,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=2228 /prefetch:2
    3⤵
    PID:4972
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=2520,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=2500 /prefetch:8
    3⤵
    PID:4412
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=PooledProcess2 --lang=en-US --service-sandbox-type=utility --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=4128,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=3772 /prefetch:8
    3⤵
    PID:1792
- - C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=4412,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=4496 /prefetch:8
    3⤵
    PID:2764
- - C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --string-annotations --always-read-main-dll --field-trial-handle=4412,i,8288020022361724181,1519368848995327196,262144 --variations-seed-version --mojo-platform-channel-handle=4496 /prefetch:8
    3⤵
    PID:5548

C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe"
1⤵
PID:2488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:1652

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x508 0x51c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4444

C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe"
1⤵
PID:5908

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa392b055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Access Token Manipulation

T1134

Create Process with Token

T1134.002

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

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Credential Access

Discovery

Browser Information Discovery

T1217

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery