xenorat | 548a95874bd76148ec652a03f114709880801c322700821f24349d1950bd94cb

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	GFKMTE.exe

Executes dropped EXE 8 IoCs

pid	Process
1324	GFKMTE.exe
2576	GFKMTE.exe
3928	GFKMTE.exe
4884	GFKMTE.exe
232	GFKMTE.exe
4668	GFKMTE.exe
3308	GFKMTE.exe
3076	GFKMTE.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 2576	1324	GFKMTE.exe	101
PID 1324 set thread context of 3928	1324	GFKMTE.exe	102
PID 1324 set thread context of 4884	1324	GFKMTE.exe	103
PID 232 set thread context of 4668	232	GFKMTE.exe	111
PID 232 set thread context of 3308	232	GFKMTE.exe	112
PID 232 set thread context of 3076	232	GFKMTE.exe	113

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
4608	3928	WerFault.exe	102
4600	4884	WerFault.exe	103

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	schtasks.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	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 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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

System Information Discovery

description	ioc	Process
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
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
1376	schtasks.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	34	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4760	EXCEL.EXE
4064	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	GFKMTE.exe
Token: SeDebugPrivilege	232	GFKMTE.exe

Suspicious use of SetWindowsHookEx 23 IoCs

pid	Process
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4064	WINWORD.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 3360	4760	EXCEL.EXE	88
PID 4760 wrote to memory of 3360	4760	EXCEL.EXE	88
PID 4064 wrote to memory of 1324	4064	WINWORD.EXE	96
PID 4064 wrote to memory of 1324	4064	WINWORD.EXE	96
PID 4064 wrote to memory of 1324	4064	WINWORD.EXE	96
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 2576	1324	GFKMTE.exe	101
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 3928	1324	GFKMTE.exe	102
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 1324 wrote to memory of 4884	1324	GFKMTE.exe	103
PID 2576 wrote to memory of 232	2576	GFKMTE.exe	110
PID 2576 wrote to memory of 232	2576	GFKMTE.exe	110
PID 2576 wrote to memory of 232	2576	GFKMTE.exe	110
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 4668	232	GFKMTE.exe	111
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3308	232	GFKMTE.exe	112
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 232 wrote to memory of 3076	232	GFKMTE.exe	113
PID 4668 wrote to memory of 1376	4668	GFKMTE.exe	118
PID 4668 wrote to memory of 1376	4668	GFKMTE.exe	118
PID 4668 wrote to memory of 1376	4668	GFKMTE.exe	118

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\548a95874bd76148ec652a03f114709880801c322700821f24349d1950bd94cb.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\FYXUDCNXK.vbs"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  PID:3360

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:4064
- 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:1324
- - 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:2576
  - - 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:232
    - - 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
        Suspicious use of WriteProcessMemory
        
        PID:4668
      - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3C.tmp" /F
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1376
    - - 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:3308
    - - 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:3076
- - 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:3928
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3928 -s 80
      4⤵
      Program crash
      PID:4608
- - 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:4884
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 80
      4⤵
      Program crash
      PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4884 -ip 4884
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3928 -ip 3928
1⤵
PID:3176

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