994d6a3c00f42e919b596a6234346a095521ce84013474aa462570aa49b0e3da

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mo332.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	xdnrxvywni.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	mo332.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	xdnrxvywni.exe

Checks BIOS information in registry 2 TTPs 6 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	xdnrxvywni.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	userplus.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	userplus.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	mo332.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	mo332.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	xdnrxvywni.exe

Executes dropped EXE 3 IoCs

pid	Process
3572	xdnrxvywni.exe
3412	userplus.exe
3316	Process not Found

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000\Software\Wine	mo332.exe
Key opened	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000\Software\Wine	xdnrxvywni.exe

Loads dropped DLL 5 IoCs

pid	Process
3412	userplus.exe
3412	userplus.exe
3316	Process not Found
4076	Process not Found
4076	Process not Found

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\plus = "C:\\Windows\\tzjyatct\\xdnrxvywni.exe"	xdnrxvywni.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mo332.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	xdnrxvywni.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\NlsLexicons00mmx.dll	xdnrxvywni.exe
File created	C:\Windows\system32\NlsLexicons00ssx.dll	xdnrxvywni.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1144	mo332.exe
3572	xdnrxvywni.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\Media\shomll.log	xdnrxvywni.exe
File created	C:\Windows\tzjyatct\Tempxdnrxvywni.exe	userplus.exe
File opened for modification	C:\Windows\tzjyatct	mo332.exe
File opened for modification	C:\Windows\Fonts.Lists	xdnrxvywni.exe
File created	C:\Windows\tzjyatct\conf.ini	xdnrxvywni.exe
File opened for modification	C:\Windows\tzjyatct\conf.ini	xdnrxvywni.exe
File created	C:\Windows\Setup\Extensionm.dll	xdnrxvywni.exe
File opened for modification	C:\Windows\Media\shomll.log	xdnrxvywni.exe
File opened for modification	C:\Windows\tzjyatct\Tempxdnrxvywni.exe	userplus.exe
File created	C:\Windows\tzjyatct\xdnrxvywni.exe	mo332.exe
File opened for modification	C:\Windows\system\system.log	xdnrxvywni.exe
File created	C:\Windows\PLA\userplus.exe	xdnrxvywni.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 5 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	mo332.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xdnrxvywni.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 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\	xdnrxvywni.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	xdnrxvywni.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1144	mo332.exe
1144	mo332.exe
1144	mo332.exe
1144	mo332.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3572	xdnrxvywni.exe
3572	xdnrxvywni.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe
3412	userplus.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3572	xdnrxvywni.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3412	userplus.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 3092	1144	mo332.exe	77
PID 1144 wrote to memory of 3092	1144	mo332.exe	77
PID 1144 wrote to memory of 3092	1144	mo332.exe	77
PID 3092 wrote to memory of 3572	3092	cmd.exe	79
PID 3092 wrote to memory of 3572	3092	cmd.exe	79
PID 3092 wrote to memory of 3572	3092	cmd.exe	79
PID 3572 wrote to memory of 1360	3572	xdnrxvywni.exe	80
PID 3572 wrote to memory of 1360	3572	xdnrxvywni.exe	80
PID 3572 wrote to memory of 1360	3572	xdnrxvywni.exe	80
PID 1360 wrote to memory of 3412	1360	cmd.exe	82
PID 1360 wrote to memory of 3412	1360	cmd.exe	82
PID 1144 wrote to memory of 2268	1144	mo332.exe	83
PID 1144 wrote to memory of 2268	1144	mo332.exe	83
PID 1144 wrote to memory of 2268	1144	mo332.exe	83

System policy modification 1 TTPs 4 IoCs

evasion

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	mo332.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mo332.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	xdnrxvywni.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	xdnrxvywni.exe

C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mo332.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mo332.exe"
1⤵
- UAC bypass
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1144
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Windows\tzjyatct\xdnrxvywni.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\tzjyatct\xdnrxvywni.exe
    C:\Windows\tzjyatct\xdnrxvywni.exe
    3⤵
    - UAC bypass
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Adds Run key to start application
    - Checks whether UAC is enabled
    - Drops file in System32 directory
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of WriteProcessMemory
    - System policy modification
    PID:3572
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c "C:\Windows\PLA\userplus.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1360
    - - C:\Windows\PLA\userplus.exe
        
        C:\Windows\PLA\userplus.exe
        5⤵
        Checks BIOS information in registry
        Executes dropped EXE
        Loads dropped DLL
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        
        PID:3412
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mokill.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion