Analysis
- max time kernel
121s - max time network
128s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system - submitted
20/03/2024, 23:41
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
da219bba74d2c3a8be7a2a6d03fe6339.dll
Resource
win7-20240221-en
windows7-x64
3 signatures
150 seconds
General
- Target da219bba74d2c3a8be7a2a6d03fe6339.dll
- Size 285KB
- Sample240320-3pg8nafc7w
- SHA256 691dcf80f7c712489e4e96f345700938736fa7e5f7f274f914b0da2faf244fd0
- MD5 da219bba74d2c3a8be7a2a6d03fe6339
- SHA1 ea6389e17a85d4b02f950e182ec7c9b4170cdbc6
- SHA512 594ef9d35371de7578a567c012365468f0212b678c953baff1289773c0e4dcd95e64b602aacc7fe828c17dc3622a12c289cccb298c9e577e6f0a49a9c339ad97
- SSDEEP 6144:b/OypTYw0GL0ujVXLEhb7TBJJtgNNOC46h0:b/jwCbSb7TrJONNQg
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{78919608-B066-4B5A-B248-38E12A783E05}\ = "Arcadeweb" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{78919608-B066-4B5A-B248-38E12A783E05}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{78919608-B066-4B5A-B248-38E12A783E05} regsvr32.exe - Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension\ = "ArcadeWeb Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib\ = "{A670E878-A272-443D-BD19-ED0A9BFD3FD8}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ = "IExtension" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension.1\CLSID\ = "{78919608-B066-4B5A-B248-38E12A783E05}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\ = "ArcadeWeb Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ = "_IExtensionEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\ExplorerPlugin.DLL\AppID = "{94C3E25B-C973-4A17-B80D-207BD978DB23}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension\CurVer\ = "ExplorerPlugin.Extension.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\da219bba74d2c3a8be7a2a6d03fe6339.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\VersionIndependentProgID\ = "ExplorerPlugin.Extension" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{94C3E25B-C973-4A17-B80D-207BD978DB23} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib\ = "{A670E878-A272-443D-BD19-ED0A9BFD3FD8}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\ProgID\ = "ExplorerPlugin.Extension.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\TypeLib\ = "{A670E878-A272-443D-BD19-ED0A9BFD3FD8}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\ExplorerPlugin.DLL regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78919608-B066-4B5A-B248-38E12A783E05}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\ = "ExplorerPlugin 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib\ = "{A670E878-A272-443D-BD19-ED0A9BFD3FD8}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension.1\ = "ArcadeWeb Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerPlugin.Extension\CLSID\ = "{78919608-B066-4B5A-B248-38E12A783E05}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\da219bba74d2c3a8be7a2a6d03fe6339.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\ = "IExtension" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\TypeLib\ = "{A670E878-A272-443D-BD19-ED0A9BFD3FD8}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5F280841-8023-4BE6-9A4F-184D3E79A785}\ = "_IExtensionEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{94C3E25B-C973-4A17-B80D-207BD978DB23}\ = "ExplorerPlugin" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A670E878-A272-443D-BD19-ED0A9BFD3FD8} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B69460A1-2DBB-4980-8F30-44231D69AEFA}\TypeLib\Version = "1.0" regsvr32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28 PID 1816 wrote to memory of 2080 1816 regsvr32.exe 28
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\da219bba74d2c3a8be7a2a6d03fe6339.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1816 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\da219bba74d2c3a8be7a2a6d03fe6339.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2080
-