1667ba6790631a29da4acc1ba8f892068bb1032c2c3542e60a44328574774fa1

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 12:11

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General

Target
ie/RichMediaViewV1release201.dll
Size 85KB
Sample240204-pcltesbbcr
SHA256 86a7744808536f04d22e6c61ccda019a3cb64c64eb516ad0a22ea09fa5711790
MD5 5d08639d4c4f6a3a1aa96b537568f0e3
SHA1 58b9ca1a83353ab9ae228d99545ecb1ac58ba5ac
SHA512 d90ad6bdf0c27c3c0089c8dc7f17f23cbb263a30416c51ad3bc138aef7f0177eb9c0f35e53b215e50655df1591e458edf15e1ff0b8d62981853bcbf6341c513b
SSDEEP 1536:tkf9Csc+EE7Mst5N60GlVk8jkrwC3nqLhPLlQM56tBZ:e9++EEws56FlVC3nmaM569
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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f2266be1-21ff-4119-b134-0e4714d5efde}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f2266be1-21ff-4119-b134-0e4714d5efde}\ = "RichMediaViewV1release201"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f2266be1-21ff-4119-b134-0e4714d5efde}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\ = "RichMediaViewV1release201"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release201.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\ = "RichMediaViewV1release201Lib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ = "IRichMediaViewV1release201BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib\ = "{B0317BFD-EBD3-40E4-A793-AF825A038EB9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\TypeLib\ = "{b0317bfd-ebd3-40e4-a793-af825a038eb9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release201.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib\ = "{B0317BFD-EBD3-40E4-A793-AF825A038EB9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B0317BFD-EBD3-40E4-A793-AF825A038EB9}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f2266be1-21ff-4119-b134-0e4714d5efde}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ = "IRichMediaViewV1release201BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0B509AE8-0736-4135-B3A8-FC5602907671}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 1960	2680	regsvr32.exe	85
PID 2680 wrote to memory of 1960	2680	regsvr32.exe	85
PID 2680 wrote to memory of 1960	2680	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release201.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release201.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1960

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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