961bf55f25103eeb23ae7f6d25ea26f57eb23ebd521ef5c7397f50aeac37ac8d

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 20:04

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General

Target

Helper.dll
Size

237KB
MD5

d374b5262dab852732718f3968fedd43
SHA1

060bfe6b9322a50ea626595f41d6f2e0c07e1f07
SHA256

24c0fadffd1ce7a497519bdca98e553d9903e8f6e19e2d755f4317db2dfe2682
SHA512

bb364ad46c122226aace34e841bfa1b22e4e629553d45f8a8887d3926cd71f927f08954a32b0acab7f8c368160b9be23c6cb2a421b34244d4edfea2ae0db40b8
SSDEEP

6144:ZBrPDCDJKGraMNuBOQl+wyh+O2TP8JUEgsv:zjDCMXMoBOQl+wK+O2gK

Score

1^/10

Malware Config

Signatures

Modifies registry class 43 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\ = "FreecauseSearchHook 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook.1\ = "FCToolbarURLSearchHook Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Helper.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook\ = "FCToolbarURLSearchHook Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ = "IFreecauseSearchHook"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook.1\CLSID\ = "{864CB4B2-15FF-476B-BFAC-02A5F657E022}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\TypeLib\ = "{FBF73995-57B1-45A1-B024-FD0BE27905DA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook\CLSID\ = "{864CB4B2-15FF-476B-BFAC-02A5F657E022}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib\ = "{FBF73995-57B1-45A1-B024-FD0BE27905DA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\ProgID\ = "FreeCauseURLSearchHook.FCToolbarURLSearchHook.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\VersionIndependentProgID\ = "FreeCauseURLSearchHook.FCToolbarURLSearchHook"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FreeCauseURLSearchHook.FCToolbarURLSearchHook.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\ = "FCToolbarURLSearchHook Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib\ = "{FBF73995-57B1-45A1-B024-FD0BE27905DA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Helper.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{864CB4B2-15FF-476B-BFAC-02A5F657E022}\InprocServer32\ThreadingModel = "both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBF73995-57B1-45A1-B024-FD0BE27905DA}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\ = "IFreecauseSearchHook"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DBD7D40D-54C4-4251-A4E2-19A9F0563B6B}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 2156	4176	regsvr32.exe	84
PID 4176 wrote to memory of 2156	4176	regsvr32.exe	84
PID 4176 wrote to memory of 2156	4176	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Helper.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Helper.dll
  2⤵
  - Modifies registry class
  PID:2156

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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