f0cccead9c7b601d53c2898a5a78b75f7697a09bb999df05569656aa10a6e769

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15/07/2024, 17:43

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General

Target

IETab.dll
Size

158KB
MD5

5362021245b80b0d26c12541cc9f5624
SHA1

c749c2fe1997db86f3cb5a904af0e3a9b75eb551
SHA256

a3b953c4c1524b1be740790386e568d121a5eb0af1a8cd71da614b6f3e06edef
SHA512

b3080611e314f1506c6b41b43ec708fcf990ea410bb2155f67e338e6ddfee331134df9cdcd84f491ba16071d103c670fa5490de7885d89b952f82d8cbf46ea1e
SSDEEP

3072:ysZnKA5JUeZybyOJUKG8VfREzOnP5aKgsfPtEaFt:jiwOJpeiP5a5qt

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CLSID\ = "{1EB1BC6A-0A39-420F-8F7B-9E797426A792}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\ = "InSideBand Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\ = "IETab"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\ProgID\ = "IETab.InSideBand.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\ = "IETab 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\CLSID\ = "{1EB1BC6A-0A39-420F-8F7B-9E797426A792}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ = "IInSideBand"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CurVer\ = "IETab.InSideBand.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\ = "InSideBand Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IETab.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ = "IInSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1EB1BC6A-0A39-420F-8F7B-9E797426A792}\VersionIndependentProgID\ = "IETab.InSideBand"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IETab.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 4740	1688	regsvr32.exe	85
PID 1688 wrote to memory of 4740	1688	regsvr32.exe	85
PID 1688 wrote to memory of 4740	1688	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\IETab.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\IETab.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:4740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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