f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75

Analysis

max time kernel
37s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-12-2022 19:39

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General

Target

f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll
Size

295KB
MD5

08eca2a676cc2a1d500b9a84e2895220
SHA1

583d45e1c2e88b2b92d2db8084267064d9537592
SHA256

f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75
SHA512

5127b7b2064483c2e227e3c3a6a003d8a568f1591d516f440272d4b88b55f42850060e3dbe7e2410b61e6ab50a199e3d0772a3d3a86c989e690b015b7dfb89a0
SSDEEP

3072:G+BvJ2f+v8FzmKUujHhp2k0gprIhtcET+0r7f5dnes6QNm2xQk:G+vEf+Wz1jz2TgbES0r7x

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 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\{1094613F-84B6-4131-AEC1-71DF88291044}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1094613F-84B6-4131-AEC1-71DF88291044}\ = "LexlibPlugin"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1094613F-84B6-4131-AEC1-71DF88291044}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ = "IJetVideoPlugin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\ = "LexlibMimeFiltr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\ProgID\ = "Lexlib.LexlibMimeFiltr.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\CurVer\ = "Lexlib.LexlibVideoPlugin.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\ = "Lexlib 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32\ = "{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32\ = "{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\ProgID\ = "Lexlib.LexlibVideoPlugin.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CLSID\ = "{BEFC54BA-36EB-4CFC-BA55-587361577A26}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib\ = "{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ = "IJetMimeFiltr"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\NumMethods\ = "7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\ = "LexlibVideoPlugin Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\TypeLib\ = "{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}\ = "pllib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1\ = "LexlibPlugin Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\NumMethods\ = "7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\TypeLib\ = "{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer\ = "Lexlibplugin.LexlibMimeFiltr.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\ = "JetMimeFiltr Class"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27
PID 1720 wrote to memory of 2020	1720	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f539baf8fdc93a1258327cc7188c8e115bb7ef19d864a1e1e034ec1c67c68c75.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2020

Network

MITRE ATT&CK Enterprise v6

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

Replay Monitor

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Downloads

memory/1720-54-0x000007FEFBC01000-0x000007FEFBC03000-memory.dmp

Filesize
8KB

Download
memory/2020-55-0x0000000000000000-mapping.dmp

Download
memory/2020-56-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download