91a8d66f5c1f651e0f60c456fa8dd06347f69be8ba5542f9c6781e6714962fa9

Analysis

max time kernel
12s
max time network
117s
platform
windows10_x64
resource
win10v20210410
submitted
30-07-2021 09:06

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General

Target

iSignatureHTML.dll
Size

1.2MB
MD5

9b672a0998c10063f2783072c5152d97
SHA1

a215d0bdf6f1ca4249cb1195366c71b477fa023e
SHA256

f5dc0bd8aac59f900c804d442bb0dfabf40a1ec9c2deb251c89cae4b7ff9cb24
SHA512

8e4d6630d7d0b028efaff9a901159c47abc9d4252cb34304559141a78d1bbefba6294e986dc2a12470aa6562a3b7a23c9e6dcf8463389bb95242f7a09da0b775

Score

1^/10

Malware Config

Signatures

Modifies registry class 64 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML\ = "SignatureHTML Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\MiscStatus\1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\MiscStatus\1\ = "131473"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{BC27F895-BDEB-412A-8CFC-F46E2D66CDB9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\TypeLib\ = "{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Control	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\ = "_ISignatureHTMLEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\ = "ISignatureHTML"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML\CLSID\ = "{9DE0EBC6-AB6D-446D-8663-FACF298125B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\TypeLib\ = "{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{BC27F895-BDEB-412A-8CFC-F46E2D66CDB9}\ = "iSignatureHTML"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iSignatureHTML.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\TypeLib\ = "{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iSignatureHTML.SignatureHTML	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\ = "_ISignatureHTMLEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\ = "ISignatureHTML"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\iSignatureHTML.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}\TypeLib\ = "{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\ToolboxBitmap32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iSignatureHTML.dll, 102"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C1A41F1A-8F98-44AA-B50B-AC3F2B198769}\1.0\ = "iSignatureHTML 1.0 ÀàÐÍ¿â"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\ = "SignatureHTML Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\VersionIndependentProgID\ = "iSignatureHTML.SignatureHTML"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iSignatureHTML.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9DE0EBC6-AB6D-446D-8663-FACF298125B3}\AppID = "{BC27F895-BDEB-412A-8CFC-F46E2D66CDB9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{63616778-9C24-4E33-AF12-1A3F1F28EA3A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5227F860-B42F-4F4F-B4D7-A07D02E541B0}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1972 wrote to memory of 592	1972	regsvr32.exe	regsvr32.exe
PID 1972 wrote to memory of 592	1972	regsvr32.exe	regsvr32.exe
PID 1972 wrote to memory of 592	1972	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iSignatureHTML.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\iSignatureHTML.dll
2⤵
- Modifies registry class
PID:592

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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