xenorat | b8e91461d8d0db828a63eee57785437e8a0f2e939c2f576e1f5569917e6a348b

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	GFKMTE.exe

Executes dropped EXE 8 IoCs

pid	Process
4980	GFKMTE.exe
2144	GFKMTE.exe
4876	GFKMTE.exe
372	GFKMTE.exe
2880	GFKMTE.exe
408	GFKMTE.exe
2476	GFKMTE.exe
1980	GFKMTE.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 4980 set thread context of 2144	4980	GFKMTE.exe	93
PID 4980 set thread context of 4876	4980	GFKMTE.exe	94
PID 4980 set thread context of 372	4980	GFKMTE.exe	95
PID 2880 set thread context of 408	2880	GFKMTE.exe	97
PID 2880 set thread context of 2476	2880	GFKMTE.exe	98
PID 2880 set thread context of 1980	2880	GFKMTE.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
5060	2476	WerFault.exe	98
2116	408	WerFault.exe	97

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GFKMTE.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
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

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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	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
5116	schtasks.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	25	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3556	EXCEL.EXE
4964	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	GFKMTE.exe
Token: SeDebugPrivilege	2880	GFKMTE.exe

Suspicious use of SetWindowsHookEx 23 IoCs

pid	Process
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
4964	WINWORD.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE
3556	EXCEL.EXE

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 4028	3556	EXCEL.EXE	87
PID 3556 wrote to memory of 4028	3556	EXCEL.EXE	87
PID 4964 wrote to memory of 4980	4964	WINWORD.EXE	90
PID 4964 wrote to memory of 4980	4964	WINWORD.EXE	90
PID 4964 wrote to memory of 4980	4964	WINWORD.EXE	90
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 2144	4980	GFKMTE.exe	93
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 4876	4980	GFKMTE.exe	94
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4980 wrote to memory of 372	4980	GFKMTE.exe	95
PID 4876 wrote to memory of 2880	4876	GFKMTE.exe	96
PID 4876 wrote to memory of 2880	4876	GFKMTE.exe	96
PID 4876 wrote to memory of 2880	4876	GFKMTE.exe	96
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 408	2880	GFKMTE.exe	97
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 2476	2880	GFKMTE.exe	98
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 2880 wrote to memory of 1980	2880	GFKMTE.exe	100
PID 372 wrote to memory of 5116	372	GFKMTE.exe	117
PID 372 wrote to memory of 5116	372	GFKMTE.exe	117
PID 372 wrote to memory of 5116	372	GFKMTE.exe	117

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:3556
- 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:4028

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:4964
- 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:4980
- - 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
    PID:2144
- - 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:4876
  - - 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:2880
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        5⤵
        Executes dropped EXE
        
        PID:408
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 408 -s 80
        6⤵
        Program crash
        
        PID:2116
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
        5⤵
        Executes dropped EXE
        
        PID:2476
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 72
        6⤵
        Program crash
        
        PID:5060
    - - 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:1980
- - 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:372
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD1F6.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2476 -ip 2476
1⤵
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 408 -ip 408
1⤵
PID:972

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