xenorat | e629bbd6a5b5c253f38cea38d156d81e0f0e391b7e7618ff275e31fa0d3a34c6

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	SSUNJNDPI.exe

Executes dropped EXE 8 IoCs

pid	Process
3768	SSUNJNDPI.exe
4448	SSUNJNDPI.exe
1320	SSUNJNDPI.exe
3748	SSUNJNDPI.exe
3660	SSUNJNDPI.exe
3416	SSUNJNDPI.exe
1968	SSUNJNDPI.exe
3572	SSUNJNDPI.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 3768 set thread context of 4448	3768	SSUNJNDPI.exe	89
PID 3768 set thread context of 1320	3768	SSUNJNDPI.exe	90
PID 3768 set thread context of 3748	3768	SSUNJNDPI.exe	92
PID 3660 set thread context of 3416	3660	SSUNJNDPI.exe	98
PID 3660 set thread context of 1968	3660	SSUNJNDPI.exe	99
PID 3660 set thread context of 3572	3660	SSUNJNDPI.exe	100

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
60	1320	WerFault.exe	90
4868	3748	WerFault.exe	92

System Location Discovery: System Language Discovery 1 TTPs 7 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	SSUNJNDPI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSUNJNDPI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSUNJNDPI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSUNJNDPI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSUNJNDPI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSUNJNDPI.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor 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\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
1776	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4528	WINWORD.EXE
4528	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	SSUNJNDPI.exe
Token: SeDebugPrivilege	3660	SSUNJNDPI.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4528	WINWORD.EXE
4528	WINWORD.EXE
4528	WINWORD.EXE
4528	WINWORD.EXE
4528	WINWORD.EXE
4528	WINWORD.EXE
4528	WINWORD.EXE

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 3768	4528	WINWORD.EXE	87
PID 4528 wrote to memory of 3768	4528	WINWORD.EXE	87
PID 4528 wrote to memory of 3768	4528	WINWORD.EXE	87
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 4448	3768	SSUNJNDPI.exe	89
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 1320	3768	SSUNJNDPI.exe	90
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 3768 wrote to memory of 3748	3768	SSUNJNDPI.exe	92
PID 4448 wrote to memory of 3660	4448	SSUNJNDPI.exe	97
PID 4448 wrote to memory of 3660	4448	SSUNJNDPI.exe	97
PID 4448 wrote to memory of 3660	4448	SSUNJNDPI.exe	97
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 3416	3660	SSUNJNDPI.exe	98
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 1968	3660	SSUNJNDPI.exe	99
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3660 wrote to memory of 3572	3660	SSUNJNDPI.exe	100
PID 3416 wrote to memory of 1776	3416	SSUNJNDPI.exe	106
PID 3416 wrote to memory of 1776	3416	SSUNJNDPI.exe	106
PID 3416 wrote to memory of 1776	3416	SSUNJNDPI.exe	106

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\e629bbd6a5b5c253f38cea38d156d81e0f0e391b7e7618ff275e31fa0d3a34c6.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4448
  - - C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
      "C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3660
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3416
      - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC2D3.tmp" /F
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1776
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1968
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\SSUNJNDPI.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3572
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    3⤵
    - Executes dropped EXE
    PID:1320
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 80
      4⤵
      Program crash
      PID:60
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\SSUNJNDPI.exe
    3⤵
    - Executes dropped EXE
    PID:3748
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 80
      4⤵
      Program crash
      PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1320 -ip 1320
1⤵
PID:3316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3748 -ip 3748
1⤵
PID:3940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Credential Access

Discovery

Query Registry

System Information Discovery