77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4

Analysis

max time kernel
51s
max time network
59s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/06/2024, 23:24

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General

Target
77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4.dll
Size 233KB
Sample240619-3d4brawglc
SHA256 77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4
MD5 2a238ee5d92d0572c4d65284b3bfd643
SHA1 3f1a55cca656cf52344a8785ed7034bc419734a4
SHA512 d681d1fe00bd02bc37c54eca40a62103ed34494f4e0acf03b0b871388a673a6cc60811859486396c8fd2dc528e50548c2fcdf6633c3782782e83cc02185cdb7e
SSDEEP 6144:xAhw85cgrrdSV1U773PfeUVS8hbQzX4DT3OKNz:x+nVhSV1U33P2UVbBAWz
MD5 SHA1 SHA512 SSDEEP

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\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\ = "ADFilterBHO Class"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\NoExplorer = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ = "IADFilterBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib\ = "{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\TypeLib\ = "{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\ = "IEPluginLib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ = "IADFilterBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\ = "ADFilterBHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib\ = "{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D78C6BE-5E33-4EC1-9090-77ACA33FD944}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{56BDD4E1-0C9A-4658-ACBF-7FADC6A60188}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{29373027-0A1C-4C35-BB93-331D704C891B}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 4376	5064	regsvr32.exe	82
PID 5064 wrote to memory of 4376	5064	regsvr32.exe	82
PID 5064 wrote to memory of 4376	5064	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\77120cd819c7408d38d0fa99dcae0dca82bf6b506ec0e435857f160707672de4.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4376

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

Replay Monitor

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Downloads

memory/4376-1-0x000000006FFF0000-0x0000000070000000-memory.dmp

Download

memory/4376-0-0x000000006FFF0000-0x0000000070000000-memory.dmp