f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf

Analysis

max time kernel
304s
max time network
440s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 05:42

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General

Target

f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.dll
Size

473KB
MD5

90522c6c55caf60ea932311ebead42d4
SHA1

26913e7da2b4012d59cad8d4e6d9ff501a704659
SHA256

f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf
SHA512

41c45cdd9143a785b083165efb94e1d4f2feb5ddc294d367d16c56bfec9df9064ed63d0a1b9f4eea5e94178b2547ae44e4dce9882d402d34dd44f92818fc8ca6
SSDEEP

12288:tmft8PTfDzdyExHtWTjI/U1a6q1mGL1lEkVEjBR:Etgf7ZtWrImI1VVED

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 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\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.VagaaÍÛ¸Â»Ê±´ú\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.VagaaÍÛ¸Â»Ê±´ú\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\ProgID\ = "f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.VagaaÍÛ¸Â»\u00adÊ±´ú"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.VagaaÍÛ¸Â»Ê±´ú	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.VagaaÍÛ¸Â»Ê±´ú\Clsid\ = "{33008A62-5561-4A57-9D1B-924CE1C4A3D8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33008A62-5561-4A57-9D1B-924CE1C4A3D8}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 1900	5084	regsvr32.exe	79
PID 5084 wrote to memory of 1900	5084	regsvr32.exe	79
PID 5084 wrote to memory of 1900	5084	regsvr32.exe	79

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f90bba10a5e386c525d0e2f065f6efdb6a78f97ae7c8bdf961ed2d79762b02bf.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1900

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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