xenorat | b8e91461d8d0db828a63eee57785437e8a0f2e939c2f576e1f5569917e6a348b

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	GFKMTE.exe

Executes dropped EXE 8 IoCs

pid	Process
1348	GFKMTE.exe
1532	GFKMTE.exe
1784	GFKMTE.exe
880	GFKMTE.exe
4356	GFKMTE.exe
2600	GFKMTE.exe
1964	GFKMTE.exe
1044	GFKMTE.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1348 set thread context of 1532	1348	GFKMTE.exe	90
PID 1348 set thread context of 1784	1348	GFKMTE.exe	91
PID 1348 set thread context of 880	1348	GFKMTE.exe	92
PID 4356 set thread context of 2600	4356	GFKMTE.exe	97
PID 4356 set thread context of 1964	4356	GFKMTE.exe	98
PID 4356 set thread context of 1044	4356	GFKMTE.exe	99

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

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1316	880	WerFault.exe	92
4612	2600	WerFault.exe	97
4180	1044	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 6 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	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Checks processor information in registry 2 TTPs 6 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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	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
4772	schtasks.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3496	EXCEL.EXE
1528	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1348	GFKMTE.exe
Token: SeDebugPrivilege	4356	GFKMTE.exe

Suspicious use of SetWindowsHookEx 25 IoCs

pid	Process
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
1528	WINWORD.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 3032	3496	EXCEL.EXE	86
PID 3496 wrote to memory of 3032	3496	EXCEL.EXE	86
PID 1528 wrote to memory of 1348	1528	WINWORD.EXE	88
PID 1528 wrote to memory of 1348	1528	WINWORD.EXE	88
PID 1528 wrote to memory of 1348	1528	WINWORD.EXE	88
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1532	1348	GFKMTE.exe	90
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 1784	1348	GFKMTE.exe	91
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1348 wrote to memory of 880	1348	GFKMTE.exe	92
PID 1784 wrote to memory of 4356	1784	GFKMTE.exe	96
PID 1784 wrote to memory of 4356	1784	GFKMTE.exe	96
PID 1784 wrote to memory of 4356	1784	GFKMTE.exe	96
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 2600	4356	GFKMTE.exe	97
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1964	4356	GFKMTE.exe	98
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 4356 wrote to memory of 1044	4356	GFKMTE.exe	99
PID 1532 wrote to memory of 4772	1532	GFKMTE.exe	104
PID 1532 wrote to memory of 4772	1532	GFKMTE.exe	104
PID 1532 wrote to memory of 4772	1532	GFKMTE.exe	104

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b8e91461d8d0db828a63eee57785437e8a0f2e939c2f576e1f5569917e6a348b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\PFLLTU.vbs"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  PID:3032

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1348
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1532
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8BC.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4772
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1784
  - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
      "C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4356
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        5⤵
        Executes dropped EXE
        
        PID:2600
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 80
        6⤵
        Program crash
        
        PID:4612
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1964
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        5⤵
        Executes dropped EXE
        
        PID:1044
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 80
        6⤵
        Program crash
        
        PID:4180
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
    3⤵
    - Executes dropped EXE
    PID:880
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 880 -s 80
      4⤵
      Program crash
      PID:1316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 880 -ip 880
1⤵
PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2600 -ip 2600
1⤵
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1044 -ip 1044
1⤵
PID:2968

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