b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2

Analysis

max time kernel
150s
max time network
184s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 18:40

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General

Target

b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll
Size

120KB
MD5

459a420c6a00c9a01cc646259d96c843
SHA1

417868f88afb248f588071bf6c9e5229d8f7ebe9
SHA256

b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2
SHA512

3edb50a1ee6d5e27978ed7f9d84396e7ab89d361a20889087756961bf6a3f1a1ef07e9447efe8eb329d174290a72c41b9b275e85db111027c66e516179f2e217
SSDEEP

1536:DiGJVY0NSk4lTy9ibUhl3kvNCGh0yJUlCzymm2S9Rrp7qE0Bs62:nVY0Nz4lTy7lsNhDJUlCzyUw9qE0d2

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\{2F83CF52-08C7-42BE-9F8D-12613FF45523}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\ = "{2F83CF58-08C7-42BE-9F8D-12613FF45523}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\ = "{2F83CF58-08C7-42BE-9F8D-12613FF45523}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{2F83CF52-08C7-42BE-9F8D-12613FF45523}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2908	regsvr32.exe
2908	regsvr32.exe
2908	regsvr32.exe
2908	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2908	2936	regsvr32.exe	83
PID 2936 wrote to memory of 2908	2936	regsvr32.exe	83
PID 2936 wrote to memory of 2908	2936	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:2908

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

Windows 7 deprecation

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