87602981350777a338de2ae6830625fc2c79f39744d2edbd5e880f04ccbb8e4d

Analysis

max time kernel
91s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 02:34

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General

Target
8b2c871d217ff82fbc9d3be707a745d2.dll
Size 232KB
Sample240203-c2rdzshdfk
SHA256 87602981350777a338de2ae6830625fc2c79f39744d2edbd5e880f04ccbb8e4d
MD5 8b2c871d217ff82fbc9d3be707a745d2
SHA1 cb346d3770bd8ccf1145a3e8077022b4f0c97905
SHA512 9e93546f7549abc94f7f58ddef49494f9a076e7840e03e092490a6593d3555d302c26bf64032d87ee6ae6d77b1ddebbf645350983de4bbca85b59793aeb6dd2e
SSDEEP 3072:6RdZFO5WXjB4SjESdTxexLcUA38JDZYrlCJhbGtarPT4qIBGxSFWd9NyoYTqS3Bi:KM9DTLKtar7cGxzdnWTqw
MD5 SHA1 SHA512 SSDEEP

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\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}	regsvr32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\ = "JavaSunSurf Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32\	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8b2c871d217ff82fbc9d3be707a745d2.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\wversion = "4.1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\webbrowser = "{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 1312	5036	regsvr32.exe	86
PID 5036 wrote to memory of 1312	5036	regsvr32.exe	86
PID 5036 wrote to memory of 1312	5036	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8b2c871d217ff82fbc9d3be707a745d2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8b2c871d217ff82fbc9d3be707a745d2.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1312

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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