16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2

Analysis

max time kernel
38s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 15:46

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General

Target

16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2.dll
Size

96KB
MD5

f08da1dce65bda73fbbb893a8386cb20
SHA1

832163730afff6e22ed6dad36c07ba1525e6eec7
SHA256

16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2
SHA512

981f07f57a910b63906d8066d8372323a9719f37d647a93dde26bd199a750cc28efd43dfbea5c7e9c3a9b0e5f2a1a7e629213fc7abd0672383f1678f2f516bcd
SSDEEP

1536:/2BwzI/tlAksy4ja1Jopy+6CS9BUV7ogEifZ:YwzI/tzlD1JopyUUk3

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\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{A0993792-E4F0-4A0C-9EEC-22375418BCBD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib\ = "{A0993798-E4F0-4A0C-9EEC-22375418BCBD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ProxyStubClsid32	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\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\TypeLib\ = "{A0993798-E4F0-4A0C-9EEC-22375418BCBD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A0993798-E4F0-4A0C-9EEC-22375418BCBD}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A0993791-E4F0-4A0C-9EEC-22375418BCBD}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A0993792-E4F0-4A0C-9EEC-22375418BCBD}\ProgID	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1684	regsvr32.exe
1684	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28
PID 1488 wrote to memory of 1684	1488	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\16cd93738400747eb4ba4f59f89e79652b276cd0f1ba0a3520cddcc305571aa2.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1684

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/1488-54-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/1684-56-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download