b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4

Analysis

max time kernel
33s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 07:05

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General

Target

b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4.dll
Size

44KB
MD5

8d8e8eecdc6a1ec4b22a63d69d45fd91
SHA1

a6f3698d654385d52791a034aa5c5e79940b5c23
SHA256

b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4
SHA512

e1b936c0369481d1b2b508ba212aaf087118ba03d0759aa0ab06b6e1c9619de206f6aa4ad10fdafc52a38b5533923ea546a075a92fd4d944f6f805bae9f8b00a
SSDEEP

768:iF0ClaQWePZ9pzkC/Gclo18EJ3MuwgRDiTzkvqLUPB:iF9YQ/PvpACPHOMuwMDjPPB

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\{16F989B2-4714-4CE5-B921-8B6C648E2E63}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib\ = "{16F989B8-4714-4CE5-B921-8B6C648E2E63}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{16F989B2-4714-4CE5-B921-8B6C648E2E63}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib\ = "{16F989B8-4714-4CE5-B921-8B6C648E2E63}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{16F989B2-4714-4CE5-B921-8B6C648E2E63}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16F989B1-4714-4CE5-B921-8B6C648E2E63}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16F989B8-4714-4CE5-B921-8B6C648E2E63}\1.0\HELPDIR	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1976	regsvr32.exe
1976	regsvr32.exe
1976	regsvr32.exe
1976	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28
PID 1788 wrote to memory of 1976	1788	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b331b9982f47d4fd7569139ea6277268934808d22994c5330f21551e5ce679f4.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1976

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/1788-54-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp

Filesize
8KB

Download
memory/1976-56-0x0000000076321000-0x0000000076323000-memory.dmp

Filesize
8KB

Download