247218bad44d5f4462bc404b3a5c45aa5d481ad67c3d665980d8dc172e607fb8

General

Target
extension-fix-ED804B.hta
Size 3KB
Sample260803-ksn69seq6x
SHA256 247218bad44d5f4462bc404b3a5c45aa5d481ad67c3d665980d8dc172e607fb8
MD5 8ebeb8ef29382fcdc44201c24bc85b8e
SHA1 749edd2dd223829053a5f647e428b91d10da6031
SHA512 86a2d4d0da023c9b20c0abcf8d5071ad8591581d85f1a42a19aed1b8af22afc2eb32804f2e2695f7378f66f89a867515f9d65739e607ed57310346961f1932cc
TLSH
T14E61F5F7AA4683CABC32899B6A6F109D14941A422366D4FCF2D7D801EF9CF5948743E4
MD5 SHA1 SHA512 TLSH

Score

8^/10

adware discovery spyware

Malware Config

Signatures

Badlisted process makes network request 7 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
6	4652	mshta.exe
33	4652	mshta.exe
35	4652	mshta.exe
47	4652	mshta.exe
55	4652	mshta.exe
60	4652	mshta.exe
61	4652	mshta.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-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	mshta.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe

Modifies registry class 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\MuiCache	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	60	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4880	rundll32.exe
2764	rundll32.exe
1656	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 4880	4652	mshta.exe	94
PID 4652 wrote to memory of 2764	4652	mshta.exe	95
PID 4652 wrote to memory of 1656	4652	mshta.exe	96
PID 4880 wrote to memory of 2996	4880	rundll32.exe	97
PID 1656 wrote to memory of 1496	1656	rundll32.exe	98
PID 2764 wrote to memory of 3004	2764	rundll32.exe	99

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\extension-fix-ED804B.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Badlisted process makes network request
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:2996
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:3004
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:1496