390c48c47b57b0891feacb81faccbe373c14b7a1a9832b0912b02aaf4de803bb

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 03:57

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General

Target

ie/RichMediaViewV1release2063.dll
Size

85KB
MD5

db3e1817f373492893e5764269e1b656
SHA1

4c5e1de0489805d91268cf80780d438c817affb6
SHA256

eff8bdfc46305f22d93cd186a8070d3583df68a751776375bfc7221261453dcc
SHA512

18e87e6b20cadf81a4f2ec4acd385cf6a509bfb3a8e2100090c94fb0c291543007df5c5866b4f8f13772584dfd006c962b3a2676d217252b4b6600a49ff1f817
SSDEEP

1536:0hMWCsgyMIwP/t6hp1ZcTkrCuECTfLlQr9mqS:5WKyMIwP16hp1lEgar9mX

Score

6^/10

adware discovery 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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{73d966f1-25e2-4c03-b8bc-56657e755afc}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{73d966f1-25e2-4c03-b8bc-56657e755afc}\ = "RichMediaViewV1release2063"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{73d966f1-25e2-4c03-b8bc-56657e755afc}\NoExplorer = "1"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib\ = "{2149C8E3-68F8-4656-B4BD-621B4C9332FC}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2063.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\ = "RichMediaViewV1release2063"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\ = "RichMediaViewV1release2063Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ = "IRichMediaViewV1release2063BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\TypeLib\ = "{2149c8e3-68f8-4656-b4bd-621b4c9332fc}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\ = "IRichMediaViewV1release2063BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2149C8E3-68F8-4656-B4BD-621B4C9332FC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{09E5E5BC-48DB-4C7D-BC9F-AB74291D113F}\TypeLib\ = "{2149C8E3-68F8-4656-B4BD-621B4C9332FC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2063.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73d966f1-25e2-4c03-b8bc-56657e755afc}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 4292	3052	regsvr32.exe	83
PID 3052 wrote to memory of 4292	3052	regsvr32.exe	83
PID 3052 wrote to memory of 4292	3052	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2063.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2063.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4292

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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