0cc49cea4423f5d35e9297c3f24c0131924e19dd9dad425019fbc89349b2dd4c

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08/10/2024, 20:47

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General

Target

ie/TrustMediaViewerV1alpha3942.dll
Size

85KB
MD5

0a806bc88d53edb0241950de1cf2fcb6
SHA1

7a6fc8eaa08baec9dac414e0ccfbee1c2aeb84d4
SHA256

19e705fc235d849856dfc84ca85e0ed236f510c32686bc55c8b8e5998993d397
SHA512

669cbcdc339e7096669daa2f2f6a81f1ca7784c97d887337216864da8a3409fa57908de4392eff9f4e187d0386ac8747eaf755a9bd1b767b2a8832d8569893de
SSDEEP

1536:P5s2Sc4McEnVtKo+kNp8DkqZ518zOslQ0yyLv:u26McEnnKo+kNqZ5uzra0yyL

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\{920a45de-5570-44c1-9e34-d2798e95e80c}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{920a45de-5570-44c1-9e34-d2798e95e80c}\ = "TrustMediaViewerV1alpha3942"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{920a45de-5570-44c1-9e34-d2798e95e80c}\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 38 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\TypeLib\ = "{2ba1d450-aab2-40fa-86be-d048c630158f}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib\ = "{2BA1D450-AAB2-40FA-86BE-D048C630158F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\ = "TrustMediaViewerV1alpha3942"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\ = "TrustMediaViewerV1alpha3942Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ = "ITrustMediaViewerV1alpha3942BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib\ = "{2BA1D450-AAB2-40FA-86BE-D048C630158F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Implemented Categories\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\TrustMediaViewerV1alpha3942.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ = "ITrustMediaViewerV1alpha3942BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\TrustMediaViewerV1alpha3942.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{920a45de-5570-44c1-9e34-d2798e95e80c}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C2DB6C98-71BD-4609-8B3D-EAFBD928CB87}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2BA1D450-AAB2-40FA-86BE-D048C630158F}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29
PID 2604 wrote to memory of 2124	2604	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\TrustMediaViewerV1alpha3942.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\TrustMediaViewerV1alpha3942.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2124

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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