238f215e7499d65f0854976fe5cbbbcd2e782a3873153250267a0badeadc782e

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 21:45

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General

Target

c9b178128d26ddad09188ee986e6e857.dll
Size

91KB
MD5

c9b178128d26ddad09188ee986e6e857
SHA1

7c397667d4863d5b639a00045af23b8890a93add
SHA256

238f215e7499d65f0854976fe5cbbbcd2e782a3873153250267a0badeadc782e
SHA512

50c2d7538d44cc06c1823d9cb07b6e2d23466f98c13627d257b47d552960a6e6f57e4fcf8019017ae5364a182a5c1d9978626c3a9d050c148435e39570f850a9
SSDEEP

1536:nIasgucXDyeZ79dDNfk2K9O8E3f7X5pZKIFNy:n24D5ZTCO8EjX5pZZNy

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\ = "IEDefenderBHO"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\NoExplorer = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FC8A493F-D236-4653-9A03-2BF4FD94F643}	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\IEDefender.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO\CurVer\ = "HelloWorld.HelloWorldBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{3C40236D-990B-443C-90E8-B1C07BCD4A68}\ = "IEDefender"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\TypeLib\ = "{705FD64B-2B7B-4856-9337-44CA1DA86849}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib\ = "{705FD64B-2B7B-4856-9337-44CA1DA86849}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{3C40236D-990B-443C-90E8-B1C07BCD4A68}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO\CLSID\ = "{FC8A493F-D236-4653-9A03-2BF4FD94F643}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO\ = "IEDefenderBHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO.1\ = "IEDefenderBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO.1\CLSID\ = "{FC8A493F-D236-4653-9A03-2BF4FD94F643}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c9b178128d26ddad09188ee986e6e857.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEDefender.IEDefenderBHO.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{705FD64B-2B7B-4856-9337-44CA1DA86849}\1.0\ = "HelloWorld 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ = "IHelloWorldBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib\ = "{705FD64B-2B7B-4856-9337-44CA1DA86849}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\ = "IHelloWorldBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\IEDefender.DLL\AppID = "{3C40236D-990B-443C-90E8-B1C07BCD4A68}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\ = "IEDefenderBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\ProgID\ = "IEDefender.IEDefenderBHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\VersionIndependentProgID\ = "IEDefender.IEDefenderBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c9b178128d26ddad09188ee986e6e857.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7BC7565C-5062-43CE-8797-DC2C271140A9}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FC8A493F-D236-4653-9A03-2BF4FD94F643}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28
PID 2012 wrote to memory of 2088	2012	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c9b178128d26ddad09188ee986e6e857.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c9b178128d26ddad09188ee986e6e857.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2088

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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