xenorat | 75a5568c91850b8332bf8ac3d6a0acbe24a2bbb9a7941994709ba3cbaa255c5a

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	DNKFU.exe

Executes dropped EXE 8 IoCs

pid	Process
4772	DNKFU.exe
3848	DNKFU.exe
812	DNKFU.exe
1060	DNKFU.exe
4844	DNKFU.exe
2328	DNKFU.exe
2168	DNKFU.exe
4884	DNKFU.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 4772 set thread context of 3848	4772	DNKFU.exe	93
PID 4772 set thread context of 812	4772	DNKFU.exe	94
PID 4772 set thread context of 1060	4772	DNKFU.exe	95
PID 4844 set thread context of 2328	4844	DNKFU.exe	97
PID 4844 set thread context of 2168	4844	DNKFU.exe	98
PID 4844 set thread context of 4884	4844	DNKFU.exe	100

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
4876	2328	WerFault.exe	97

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DNKFU.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	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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.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
1952	schtasks.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	27	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4668	EXCEL.EXE
924	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe
1060	DNKFU.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4772	DNKFU.exe
Token: SeDebugPrivilege	4844	DNKFU.exe
Token: SeDebugPrivilege	1060	DNKFU.exe
Token: SeShutdownPrivilege	1060	DNKFU.exe

Suspicious use of SetWindowsHookEx 21 IoCs

pid	Process
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE
924	WINWORD.EXE
924	WINWORD.EXE
924	WINWORD.EXE
924	WINWORD.EXE
924	WINWORD.EXE
924	WINWORD.EXE
924	WINWORD.EXE
4668	EXCEL.EXE
4668	EXCEL.EXE

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 1612	4668	EXCEL.EXE	87
PID 4668 wrote to memory of 1612	4668	EXCEL.EXE	87
PID 924 wrote to memory of 4772	924	WINWORD.EXE	90
PID 924 wrote to memory of 4772	924	WINWORD.EXE	90
PID 924 wrote to memory of 4772	924	WINWORD.EXE	90
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 3848	4772	DNKFU.exe	93
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 812	4772	DNKFU.exe	94
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 4772 wrote to memory of 1060	4772	DNKFU.exe	95
PID 3848 wrote to memory of 4844	3848	DNKFU.exe	96
PID 3848 wrote to memory of 4844	3848	DNKFU.exe	96
PID 3848 wrote to memory of 4844	3848	DNKFU.exe	96
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2328	4844	DNKFU.exe	97
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 2168	4844	DNKFU.exe	98
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 4844 wrote to memory of 4884	4844	DNKFU.exe	100
PID 1060 wrote to memory of 1952	1060	DNKFU.exe	114
PID 1060 wrote to memory of 1952	1060	DNKFU.exe	114
PID 1060 wrote to memory of 1952	1060	DNKFU.exe	114

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4WBVB_Estadodecuenta.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\TDCNX.vbs"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  PID:1612

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:924
- 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:4772
- - 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:3848
  - - 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:4844
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\DNKFU.exe
        5⤵
        Executes dropped EXE
        
        PID:2328
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 12
        6⤵
        Program crash
        
        PID:4876
    - - 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:2168
    - - 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\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
    PID:812
- - 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:1060
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmp274A.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2328 -ip 2328
1⤵
PID:2132

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