xenorat | b4dd75adf11ddcc5140fda99a0619ec0410ec7565b96b18c8e0da718823f91da

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	DNKFU.exe

Executes dropped EXE 8 IoCs

pid	Process
3768	DNKFU.exe
2088	DNKFU.exe
4064	DNKFU.exe
5060	DNKFU.exe
2272	DNKFU.exe
4516	DNKFU.exe
4620	DNKFU.exe
3092	DNKFU.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 3768 set thread context of 2088	3768	DNKFU.exe	93
PID 3768 set thread context of 4064	3768	DNKFU.exe	94
PID 3768 set thread context of 5060	3768	DNKFU.exe	95
PID 2272 set thread context of 4516	2272	DNKFU.exe	101
PID 2272 set thread context of 4620	2272	DNKFU.exe	102
PID 2272 set thread context of 3092	2272	DNKFU.exe	103

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
2444	2088	WerFault.exe	93

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	schtasks.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	DNKFU.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 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	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

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4448	Notepad.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
4504	schtasks.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3000	WINWORD.EXE
3000	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	DNKFU.exe
Token: SeDebugPrivilege	2272	DNKFU.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3000	WINWORD.EXE
3000	WINWORD.EXE
3000	WINWORD.EXE
3000	WINWORD.EXE
3000	WINWORD.EXE
3000	WINWORD.EXE
3000	WINWORD.EXE

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 3768	3000	WINWORD.EXE	90
PID 3000 wrote to memory of 3768	3000	WINWORD.EXE	90
PID 3000 wrote to memory of 3768	3000	WINWORD.EXE	90
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 2088	3768	DNKFU.exe	93
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 4064	3768	DNKFU.exe	94
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 3768 wrote to memory of 5060	3768	DNKFU.exe	95
PID 4064 wrote to memory of 2272	4064	DNKFU.exe	100
PID 4064 wrote to memory of 2272	4064	DNKFU.exe	100
PID 4064 wrote to memory of 2272	4064	DNKFU.exe	100
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4516	2272	DNKFU.exe	101
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 4620	2272	DNKFU.exe	102
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 2272 wrote to memory of 3092	2272	DNKFU.exe	103
PID 5060 wrote to memory of 4504	5060	DNKFU.exe	115
PID 5060 wrote to memory of 4504	5060	DNKFU.exe	115
PID 5060 wrote to memory of 4504	5060	DNKFU.exe	115

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7ab4cff638814f6af02b404eb9be4546122f56f93b071c44728d79f71e074277.vbs"
1⤵
- Blocklisted process makes network request
PID:676

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:3000
- 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:3768
- - 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:2088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 80
      4⤵
      Program crash
      PID:2444
- - 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:4064
  - - 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:2272
    - - 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:4516
    - - 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:4620
    - - 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:3092
- - 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 use of WriteProcessMemory
    PID:5060
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC081.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2088 -ip 2088
1⤵
PID:1708

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4028

C:\Windows\System32\Notepad.exe
"C:\Windows\System32\Notepad.exe" C:\Users\Admin\AppData\Local\Temp\7ab4cff638814f6af02b404eb9be4546122f56f93b071c44728d79f71e074277.vbs
1⤵
- Opens file in notepad (likely ransom note)
PID:4448

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