49b863244b374c2953ae6f42e9c3e33caddf46195d3a6eb5c8e1bba3ed87eaa0

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 16:03

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General

Target
ie/RichMediaViewV1release3977.dll
Size 85KB
Sample240204-thfltafgdp
SHA256 e2fbe5b381afe1cb3c4582a5ddb9075b16c9037ce6cd703bbbb9156a64013ce3
MD5 33221541f1e08823b3e3b22991e29b45
SHA1 2dcd11c817c18b5fbe9cd99f072309d9027c2045
SHA512 a212a96f6c7482b2b0ba10ecb36ff22748afbcd7f7f5149bde87297ccf31afae5257a1754e9a563cb84b58c455b66f0e4530cd895032862921b5f029db1f9ed6
SSDEEP 1536:ShMWCsgyMIwP/t6hp1ZcTkrC5ZCTfLlQ0ryaS:fWKyMIwP16hp1SZga0ryH
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\{68258f03-0c86-409d-9067-1c5ccb4724eb}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{68258f03-0c86-409d-9067-1c5ccb4724eb}\ = "RichMediaViewV1release3977"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{68258f03-0c86-409d-9067-1c5ccb4724eb}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\ = "RichMediaViewV1release3977Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib\ = "{2B2144BB-6B34-4419-AD24-294861110EBA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\ = "RichMediaViewV1release3977"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release3977.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\TypeLib\ = "{2b2144bb-6b34-4419-ad24-294861110eba}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release3977.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\TypeLib\ = "{2B2144BB-6B34-4419-AD24-294861110EBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ = "IRichMediaViewV1release3977BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{68258f03-0c86-409d-9067-1c5ccb4724eb}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B13B6923-08D3-43F8-AEAE-9E6D4A545DBB}\ = "IRichMediaViewV1release3977BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B2144BB-6B34-4419-AD24-294861110EBA}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28
PID 1340 wrote to memory of 2172	1340	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release3977.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release3977.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2172

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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