xenorat | 548212f42d5dc4965db354d6ce075422dcb3331a213fb0b5b662e08e59234829

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	RUSYZH.exe

Executes dropped EXE 8 IoCs

pid	Process
544	RUSYZH.exe
1960	RUSYZH.exe
4064	RUSYZH.exe
2988	RUSYZH.exe
2888	RUSYZH.exe
4072	RUSYZH.exe
5028	RUSYZH.exe
1504	RUSYZH.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 544 set thread context of 1960	544	RUSYZH.exe	88
PID 544 set thread context of 4064	544	RUSYZH.exe	89
PID 544 set thread context of 2988	544	RUSYZH.exe	91
PID 2888 set thread context of 4072	2888	RUSYZH.exe	95
PID 2888 set thread context of 5028	2888	RUSYZH.exe	96
PID 2888 set thread context of 1504	2888	RUSYZH.exe	97

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
3792	1960	WerFault.exe	88
4916	1504	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	RUSYZH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUSYZH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUSYZH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUSYZH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUSYZH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUSYZH.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	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
4024	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
396	WINWORD.EXE
396	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe
2988	RUSYZH.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	544	RUSYZH.exe
Token: SeDebugPrivilege	2888	RUSYZH.exe
Token: SeDebugPrivilege	2988	RUSYZH.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
396	WINWORD.EXE
396	WINWORD.EXE
396	WINWORD.EXE
396	WINWORD.EXE
396	WINWORD.EXE
396	WINWORD.EXE
396	WINWORD.EXE

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 544	396	WINWORD.EXE	86
PID 396 wrote to memory of 544	396	WINWORD.EXE	86
PID 396 wrote to memory of 544	396	WINWORD.EXE	86
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 1960	544	RUSYZH.exe	88
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 4064	544	RUSYZH.exe	89
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 544 wrote to memory of 2988	544	RUSYZH.exe	91
PID 4064 wrote to memory of 2888	4064	RUSYZH.exe	94
PID 4064 wrote to memory of 2888	4064	RUSYZH.exe	94
PID 4064 wrote to memory of 2888	4064	RUSYZH.exe	94
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 4072	2888	RUSYZH.exe	95
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 5028	2888	RUSYZH.exe	96
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2888 wrote to memory of 1504	2888	RUSYZH.exe	97
PID 2988 wrote to memory of 4024	2988	RUSYZH.exe	106
PID 2988 wrote to memory of 4024	2988	RUSYZH.exe	106
PID 2988 wrote to memory of 4024	2988	RUSYZH.exe	106

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\ec6627e48bb4c56abbb2a4563072e631.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:396
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
    3⤵
    - Executes dropped EXE
    PID:1960
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 80
      4⤵
      Program crash
      PID:3792
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.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\RUSYZH.exe
      "C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2888
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4072
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:5028
    - - C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        
        C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
        5⤵
        Executes dropped EXE
        
        PID:1504
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 80
        6⤵
        Program crash
        
        PID:4916
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFBA.tmp" /F
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1960 -ip 1960
1⤵
PID:2688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1504 -ip 1504
1⤵
PID:4520

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