xenorat | 3106e90067456404a9f3e768ce3b60de6ae91fa2be664255ad6fe86c3f87e67d

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	KKSTV.exe

Executes dropped EXE 8 IoCs

pid	Process
4660	KKSTV.exe
3332	KKSTV.exe
3012	KKSTV.exe
332	KKSTV.exe
3152	KKSTV.exe
3592	KKSTV.exe
2400	KKSTV.exe
4492	KKSTV.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 4660 set thread context of 3332	4660	KKSTV.exe	89
PID 4660 set thread context of 3012	4660	KKSTV.exe	90
PID 4660 set thread context of 332	4660	KKSTV.exe	92
PID 3152 set thread context of 3592	3152	KKSTV.exe	96
PID 3152 set thread context of 2400	3152	KKSTV.exe	97
PID 3152 set thread context of 4492	3152	KKSTV.exe	98

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3448	3332	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 8 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	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KKSTV.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
5000	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1560	WINWORD.EXE
1560	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4660	KKSTV.exe
Token: SeDebugPrivilege	3152	KKSTV.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1560	WINWORD.EXE
1560	WINWORD.EXE
1560	WINWORD.EXE
1560	WINWORD.EXE
1560	WINWORD.EXE
1560	WINWORD.EXE
1560	WINWORD.EXE

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 4660	1560	WINWORD.EXE	87
PID 1560 wrote to memory of 4660	1560	WINWORD.EXE	87
PID 1560 wrote to memory of 4660	1560	WINWORD.EXE	87
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3332	4660	KKSTV.exe	89
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 3012	4660	KKSTV.exe	90
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 4660 wrote to memory of 332	4660	KKSTV.exe	92
PID 3012 wrote to memory of 3152	3012	KKSTV.exe	95
PID 3012 wrote to memory of 3152	3012	KKSTV.exe	95
PID 3012 wrote to memory of 3152	3012	KKSTV.exe	95
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 3592	3152	KKSTV.exe	96
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 2400	3152	KKSTV.exe	97
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 3152 wrote to memory of 4492	3152	KKSTV.exe	98
PID 332 wrote to memory of 5000	332	KKSTV.exe	110
PID 332 wrote to memory of 5000	332	KKSTV.exe	110
PID 332 wrote to memory of 5000	332	KKSTV.exe	110

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\3106e90067456404a9f3e768ce3b60de6ae91fa2be664255ad6fe86c3f87e67d.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:1560
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4660
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    3⤵
    - Executes dropped EXE
    PID:3332
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3332 -s 84
      4⤵
      Program crash
      PID:3448
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3012
  - - C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
      "C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3152
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3592
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:2400
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4492
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:332
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE399.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3332 -ip 3332
1⤵
PID:940

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