138ad0b7d4f6f64be0b7a6227a794662272858a1a2f5665b6c5f9a4e0f282e85

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 10:13

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General

Target

ie/RichMediaViewV1release203.dll
Size

85KB
MD5

f4ddc34a9b812597c86d0bcee2da1c81
SHA1

7ba6c712bb176f566f44874a9218b6852e59cf4b
SHA256

baeed16699b3c67d4801c1722017c9d95dace3e7c8ec97898c7f1282c9ec6c3a
SHA512

fc22416eed502cd486ceeb607df507a43684647a630fcaf6715e8f9f2a2535538d55c58923335126bb7523d937025f005ae9b11fb4aa7451251329822f10a6d0
SSDEEP

1536:ckf9Csc+EE7Msd5N60GlVk8jkrwKCnqLhPLlQGpcNBZ:/9++EEwsJ6FlVKCnmaGpcd

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\{918ae817-f084-43d6-9203-c6570c30a68e}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{918ae817-f084-43d6-9203-c6570c30a68e}\ = "RichMediaViewV1release203"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{918ae817-f084-43d6-9203-c6570c30a68e}\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ = "IRichMediaViewV1release203BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\TypeLib\ = "{64c38998-dc5b-4d8f-a7a8-dd73010c7843}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\ = "RichMediaViewV1release203Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib\ = "{64C38998-DC5B-4D8F-A7A8-DD73010C7843}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\ = "RichMediaViewV1release203"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ = "IRichMediaViewV1release203BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release203.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release203.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{520E65FF-E951-40E3-9B8E-C4DACD17A54D}\TypeLib\ = "{64C38998-DC5B-4D8F-A7A8-DD73010C7843}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{918ae817-f084-43d6-9203-c6570c30a68e}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{64C38998-DC5B-4D8F-A7A8-DD73010C7843}\1.1\FLAGS	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30
PID 1956 wrote to memory of 1292	1956	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release203.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release203.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1292

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

Windows 7 deprecation

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