df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "3"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "1"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe

Executes dropped EXE 1 IoCs

pid	Process
4976	winlogon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	winlogon.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4976 set thread context of 1600	4976	winlogon.exe	88
PID 4976 set thread context of 1944	4976	winlogon.exe	94

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
1056	1600	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 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	winlogon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Search Page = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Search Page = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Search_URL = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Default_Search_URL = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://www.nuevaq.fm"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Main	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Local Page = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Local Page = "http://www.nuevaq.fm"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Internet Explorer\Main	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://www.nuevaq.fm"	svchost.exe

Modifies Internet Explorer start page 1 TTPs 2 IoCs

stealer

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.nuevaq.fm"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Start Page = "http://www.nuevaq.fm"	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	1944	svchost.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3812	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe
4976	winlogon.exe
1944	svchost.exe
1944	svchost.exe
1944	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 4976	3812	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe	87
PID 3812 wrote to memory of 4976	3812	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe	87
PID 3812 wrote to memory of 4976	3812	df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe	87
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1600	4976	winlogon.exe	88
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94
PID 4976 wrote to memory of 1944	4976	winlogon.exe	94

C:\Users\Admin\AppData\Local\Temp\df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe
"C:\Users\Admin\AppData\Local\Temp\df88fc8160d973ab1c7b80efeae84773ab413541dbd7a606dc3f4a0f1fc0e584N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\Admin1\winlogon.exe
  "C:\Users\Admin\Admin1\winlogon.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4976
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\system32\svchost.exe"
    3⤵
    PID:1600
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 84
      4⤵
      Program crash
      PID:1056
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\system32\svchost.exe"
    3⤵
    - Modifies visibility of file extensions in Explorer
    - Modifies visiblity of hidden/system files in Explorer
    - UAC bypass
    - Windows security bypass
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Modifies Internet Explorer start page
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1600 -ip 1600
1⤵
PID:3312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery