85279cdb549601f938ae929d024b180de87771379f48acbd500328371a3d1ec4

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 04:47

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General

Target

bfe20105a54401e3f4ae91db4d0a8b2a.dll
Size

302KB
MD5

bfe20105a54401e3f4ae91db4d0a8b2a
SHA1

3246b4913f850ebbcb4bd88f162211298630d755
SHA256

85279cdb549601f938ae929d024b180de87771379f48acbd500328371a3d1ec4
SHA512

26073a40a3ec9fe918901bbbbafc5352f739fa8e9b2032d8e61d8d26a0cc48d91817b01c897e45c79ff61c9fbaa8509748e4d5aeae0855285a85d3d2a5f06de7
SSDEEP

3072:boRwggd98flzRqRekEXdIKPQgprIhtIaT+0r7f5dnZs6QN+qEbre:b3J989zHk1fgHaS0r7xzK

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\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ = "PSFactoryBuffer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\ProgID\ = "Lexlib.LexlibMimeFiltr.1"	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\\bfe20105a54401e3f4ae91db4d0a8b2a.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib\ = "{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}"	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\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\\bfe20105a54401e3f4ae91db4d0a8b2a.dll"	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}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\ = "JetMimeFiltr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\ = "LexlibMimeFiltr Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\VersionIndependentProgID\ = "Lexlib.LexlibVideoPlugin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}	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}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\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\xvideoplugin.JetMimeFiltr.1\CLSID\ = "{BEFC54BA-36EB-4CFC-BA55-587361577A26}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32\ = "{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0	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\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\NumMethods\ = "7"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1	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\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}\1.0\ = "Lexlib 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bfe20105a54401e3f4ae91db4d0a8b2a.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\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ = "IJetVideoPlugin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ = "IJetVideoPlugin"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1\CLSID\ = "{1094613F-84B6-4131-AEC1-71DF88291044}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\TypeLib\ = "{3A596471-ECBE-4AEE-B543-79AE8C8FF7A9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\ = "LexlibPlugin Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1094613F-84B6-4131-AEC1-71DF88291044}\ProgID\ = "Lexlib.LexlibVideoPlugin.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\TypeLib	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\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\NumMethods\ = "7"	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\xvideoplugin.JetMimeFiltr.1\ = "LexlibMimeFiltr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BEFC54BA-36EB-4CFC-BA55-587361577A26}\VersionIndependentProgID\ = "Lexlib.LexlibMimeFiltr"	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\Interface\{8E569E70-9E91-4CF9-820C-99DDC3A05A0C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{047D87FD-BFC5-4AC3-9AD3-ACECC7B49016}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\pllib.DLL\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28
PID 1984 wrote to memory of 1884	1984	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\bfe20105a54401e3f4ae91db4d0a8b2a.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\bfe20105a54401e3f4ae91db4d0a8b2a.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1884

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

Windows 7 deprecation

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