xenorat | b7d50f4fb2342f63f86df5da89e7be2d3490adaccb37a5a6df2c1927c46aec60

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	DNKFU.exe

Executes dropped EXE 8 IoCs

pid	Process
3508	DNKFU.exe
4560	DNKFU.exe
3296	DNKFU.exe
1376	DNKFU.exe
1288	DNKFU.exe
2120	DNKFU.exe
4884	DNKFU.exe
748	DNKFU.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 3508 set thread context of 4560	3508	DNKFU.exe	90
PID 3508 set thread context of 3296	3508	DNKFU.exe	91
PID 3508 set thread context of 1376	3508	DNKFU.exe	93
PID 1288 set thread context of 2120	1288	DNKFU.exe	97
PID 1288 set thread context of 4884	1288	DNKFU.exe	98
PID 1288 set thread context of 748	1288	DNKFU.exe	99

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
1464	4560	WerFault.exe	90
2540	748	WerFault.exe	99

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	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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 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

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
1260	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4040	WINWORD.EXE
4040	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe
1376	DNKFU.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	DNKFU.exe
Token: SeDebugPrivilege	1288	DNKFU.exe
Token: SeDebugPrivilege	1376	DNKFU.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4040	WINWORD.EXE
4040	WINWORD.EXE
4040	WINWORD.EXE
4040	WINWORD.EXE
4040	WINWORD.EXE
4040	WINWORD.EXE
4040	WINWORD.EXE

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 4040 wrote to memory of 3508	4040	WINWORD.EXE	88
PID 4040 wrote to memory of 3508	4040	WINWORD.EXE	88
PID 4040 wrote to memory of 3508	4040	WINWORD.EXE	88
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 4560	3508	DNKFU.exe	90
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 3296	3508	DNKFU.exe	91
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3508 wrote to memory of 1376	3508	DNKFU.exe	93
PID 3296 wrote to memory of 1288	3296	DNKFU.exe	96
PID 3296 wrote to memory of 1288	3296	DNKFU.exe	96
PID 3296 wrote to memory of 1288	3296	DNKFU.exe	96
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 2120	1288	DNKFU.exe	97
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 4884	1288	DNKFU.exe	98
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1288 wrote to memory of 748	1288	DNKFU.exe	99
PID 1376 wrote to memory of 1260	1376	DNKFU.exe	108
PID 1376 wrote to memory of 1260	1376	DNKFU.exe	108
PID 1376 wrote to memory of 1260	1376	DNKFU.exe	108

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\b7d50f4fb2342f63f86df5da89e7be2d3490adaccb37a5a6df2c1927c46aec60.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:4040
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3508
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    3⤵
    - Executes dropped EXE
    PID:4560
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 80
      4⤵
      Program crash
      PID:1464
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3296
  - - C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
      "C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1288
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:2120
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4884
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        5⤵
        Executes dropped EXE
        
        PID:748
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 80
        6⤵
        Program crash
        
        PID:2540
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\DNKFU.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1376
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmp172.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4560 -ip 4560
1⤵
PID:2852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 748 -ip 748
1⤵
PID:4952

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