f6a5826ce051383ccb2054a121186fe321efe92f9a6bf49f84b13f518f29175d

Analysis

max time kernel
137s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19-07-2024 19:01

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General

Target

iis_rewrite/mtbnotif.dll
Size

80KB
MD5

e75014ef4096b22fbd120398424102a5
SHA1

1fa336d3df933ccd70d5d98430219ff51fec8296
SHA256

9733873f8b5847bd5f9c5ba133798492313d36a352a975659b305e02a13ca798
SHA512

0ff5ff78b95ffa8e925e26a45e8aa306f0aa8d5f18e1998b6b2dd24130adfcd10139fe4d2fa431d766943083c0d10c05584e1ce173ffb784920660e1de8a80f4
SSDEEP

1536:/rOLavn+l7DGSBEJonjPTb0QwNIC/1y0++GrKcSaI9o:TOL2n+5hEW/2yC/1Q+GecSaeo

Score

1^/10

Malware Config

Signatures

Modifies registry class 31 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\ = "MetaBaseWatchDog Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CurVer\ = "ISAPIRewrite.MetaBaseWatchDog.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\ = "MetaBaseWatchDog Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\mtbnotif.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ProgID\ = "ISAPIRewrite.MetaBaseWatchDog.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\VersionIndependentProgID\ = "ISAPIRewrite.MetaBaseWatchDog"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ = "MetaBaseWatchDog Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\TypeLib\ = "{97808F6C-4769-49D5-9553-18AE9C62ACD7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\ = "mtbnotif 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\CLSID\ = "{27C3B8ED-0790-42BD-9AD7-18465E7F7696}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CLSID\ = "{27C3B8ED-0790-42BD-9AD7-18465E7F7696}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\mtbnotif.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 956 wrote to memory of 3144	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 3144	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 3144	956	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iis_rewrite\mtbnotif.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\iis_rewrite\mtbnotif.dll
2⤵
- Modifies registry class
PID:3144

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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