a06707da5ad2ad380b04657f9fef6902b8f88fe42cfa54194bb3dd07685227a0

General

Target
extension-fix-HZXHOD.hta
Size 2KB
Sample260803-k73cfashjg
SHA256 a06707da5ad2ad380b04657f9fef6902b8f88fe42cfa54194bb3dd07685227a0
MD5 742184fbf8856813332a340ad366ac94
SHA1 49cb44b87455996c4b531252e8ab51f96da128a1
SHA512 f29e3deb2e991c3b2bb4a8152359adeaef7dd6ea95c25a29514f84ba4f8f5331fdf7cf25f1b7f661b51f4f8453de2c050684a450e58ae0e98ea413268c91567d
TLSH
T14C5179F7BA4516D5BD314A9B2A6F90CD18E416432366E0F8F6E6DC00AF88E4D45B83D8
MD5 SHA1 SHA512 TLSH

Score

8^/10

adware discovery spyware

Malware Config

Signatures

Badlisted process makes network request 5 IoCs

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

flow	pid	Process
3	2292	mshta.exe
4	2292	mshta.exe
5	2292	mshta.exe
6	2292	mshta.exe
7	2292	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	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	mshta.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-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe

Modifies registry class 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_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-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1"	rundll32.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1940	rundll32.exe
5420	rundll32.exe
3376	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 1940	2292	mshta.exe	90
PID 2292 wrote to memory of 5420	2292	mshta.exe	91
PID 2292 wrote to memory of 3376	2292	mshta.exe	92
PID 3376 wrote to memory of 5968	3376	rundll32.exe	93
PID 1940 wrote to memory of 4576	1940	rundll32.exe	94
PID 5420 wrote to memory of 6048	5420	rundll32.exe	95

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\extension-fix-HZXHOD.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Badlisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2292
- 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:1940
- - 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:4576
- 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:5420
- - 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:6048
- 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:3376
- - 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:5968