Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/08/2026, 03:32
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll
Resource
win10v2004-20260513-en
windows10-2004-x64
3 signatures
150 seconds
Behavioral task
behavioral2
Sample
a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
3 signatures
150 seconds
General
- Target a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll
- Size 500KB
- Sample260808-d3vcpsgr7x
- SHA256 a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac
- MD5 252b709e4475cb55c1c9c2ebfaaedb5b
- SHA1 11b1150dde2fe8d8d96647f6efde6f670f13ddc3
- SHA512 b12dae92fa7d43bce15d9296fa3d7800a40f397f0a5f30771ac52a00a4e3c54e203a95bf50243427bd1500e9aa7fae3ddb3eaad24a52a1e4c4dbae6efb56f9a9
- SSDEEP 12288:QjgQluXGUMxL/qJBVLdBGZ+HrEMS+l48ZIWrkbf:Qjg1u/qTVLdBGZ+LFr4
- TLSH T1D2B41A05F39685E3D8270A70496EF7BF5A2CBA11F9609E6AFB0CCD491F72A617230714
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe - Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D30C1661-CDAF-11D0-8A3E-00C04FC9E26E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{85CB6900-4D95-11CF-960C-0080C7F4EE85} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E572D3C9-37BE-4AE2-825D-D521763E3108} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BA9239A4-3DD5-11D2-BF8B-00C04FB93661}\ProxyStubClsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA1}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B45FF030-4447-11D2-85DE-00C04FA35C89}\VersionIndependentProgId\ = "SearchAssistantOC.SearchAssistantOC" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\DefaultIcon\ = "url.dll,0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{47C922A2-3DD5-11D2-BF8B-00C04FB93661}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA2}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2E71FD0F-AAB1-42C0-9146-6D2C4EDCF07D}\VersionIndependentProgId\ = "SearchAssistantOC.SearchAssistantOC" regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\.URL\PersistentHandler regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\https\URL Protocol regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{47C922A2-3DD5-11D2-BF8B-00C04FB93661}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA3}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{64AB4BB7-111E-11d1-8F79-00C04FC2FBE1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F2F1F96-2BC1-4B1C-BE28-EA3774F4676A}\ProgId\ = "ShellNameSpace.ShellNameSpace.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA1}\TypeLib\ = "{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1611FDDA-445B-11D2-85DE-00C04FA35C89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAB22AC2-30C1-11CF-A7EB-0000C05BAE0B}\ProxyStubClsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B45FF030-4447-11D2-85DE-00C04FA35C89}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SearchAssistantOC.SearchAssistantOC.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\NeverShowExt regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE4106E0-399A-11D0-A48C-00A0C90A8F39} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BA9239A4-3DD5-11D2-BF8B-00C04FB93661}\TypeLib\ = "{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA2}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F2F1F96-2BC1-4B1C-BE28-EA3774F4676A}\TypeLib\ = "{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B45FF030-4447-11D2-85DE-00C04FA35C89}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{729FE2F8-1EA8-11D1-8F85-00C04FC2FBE1}\ProxyStubClsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1611FDDA-445B-11D2-85DE-00C04FA35C89}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9BA05972-F6A8-11CF-A442-00A0C90A8F39} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA1}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2E71FD0F-AAB1-42C0-9146-6D2C4EDCF07D}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B45FF030-4447-11D2-85DE-00C04FA35C89}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B45FF030-4447-11D2-85DE-00C04FA35C89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F3470F24-15FD-11D2-BB2E-00805FF7EFCA}\ProxyStubClsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{47C922A2-3DD5-11D2-BF8B-00C04FB93661} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA3}\ = "ISearchAssistantOC3" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1611FDDA-445B-11D2-85DE-00C04FA35C89}\ = "_SearchAssistantEvents" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SearchAssistantOC.SearchAssistantOC.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BA9239A4-3DD5-11D2-BF8B-00C04FB93661}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA1}\ProxyStubClsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA2} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA2}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0002DF01-0000-0000-C000-000000000046}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0002DF01-0000-0000-C000-000000000046} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F2F1F96-2BC1-4B1C-BE28-EA3774F4676A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SearchAssistantOC.SearchAssistantOC.1\CLSID\ = "{B45FF030-4447-11D2-85DE-00C04FA35C89}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FE4106E0-399A-11D0-A48C-00A0C90A8F39}\ProxyStubClsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{729FE2F8-1EA8-11D1-8F85-00C04FC2FBE1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72423E8F-8011-11D2-BE79-00A0C9A83DA3}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2E71FD0F-AAB1-42C0-9146-6D2C4EDCF07D}\TypeLib regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\.URL\ShellEx\{000214EE-0000-0000-C000-000000000046} regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\.URL\ShellEx\{000214F9-0000-0000-C000-000000000046} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.url regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{55136804-B2DE-11D1-B9F2-00A0C98BC547} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BA9239A4-3DD5-11D2-BF8B-00C04FB93661}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BA9239A4-3DD5-11D2-BF8B-00C04FB93661}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F2F1F96-2BC1-4B1C-BE28-EA3774F4676A}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SearchAssistantOC.SearchAssistantOC.1\ = "SearchAssistantOC" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\InternetShortcut\IsShortcut regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\.URL\ShellEx\{00021500-0000-0000-C000-000000000046} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAB22AC1-30C1-11CF-A7EB-0000C05BAE0B} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{85CB6900-4D95-11CF-960C-0080C7F4EE85}\ProxyStubClsid regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4180 wrote to memory of 3916 4180 regsvr32.exe 85
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4180 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a4b09b229335e55ffddad4aada40cfa1aeec4dcc02fc2ec7de8f9bdb3a1289ac.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3916
-