94fef3ee9512941ff1aa4c8a951598ae67c42b71fbc047d28f3164570497d0b0

Analysis

max time kernel
132s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2024, 03:43

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General

Target

Filters/em2vd.dll
Size

748KB
MD5

ef708c4484c105389e581ef2f571bb5d
SHA1

3913dc913d4d1719d23a656d14780596fbaf917a
SHA256

9fc33c2508e505d837485dcf8ccbde5cba2e9426be541480d3799324666b463e
SHA512

59a8f3c1e88bb4884b89eaa13bbf6a2ea9fd6b108e7f573abaa84944324c530b7196146f3f11696f7588762fe30f44f0b2a55020c3482a6e83bb8503b5785710
SSDEEP

12288:U2MtQQ8866Oxxve5snFhzVeNA23guAgcbeYt:U2MtJPOxxve5sPVmgZ

Score

1^/10

Malware Config

Signatures

Modifies registry class 22 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\Capabilities\{374ac4df-7c98-4257-b13d-36087dbee458} = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D677B967-820F-4E84-B43A-118270FFFB80}\ = "About"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D677B967-820F-4E84-B43A-118270FFFB80}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\FilterData = 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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5611AC6E-60BD-4C61-B1B2-793037310CA7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5611AC6E-60BD-4C61-B1B2-793037310CA7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Filters\\em2vd.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5611AC6E-60BD-4C61-B1B2-793037310CA7}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D677B967-820F-4E84-B43A-118270FFFB80}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11d0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\Capabilities	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D677B967-820F-4E84-B43A-118270FFFB80}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Filters\\em2vd.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\CLSID = "{BC4EB321-771F-4E9F-AF67-37C631ECA106}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\Options = a112e9f51eafda0100000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\ = "Elecard MPEG-2 Video Decoder"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5611AC6E-60BD-4C61-B1B2-793037310CA7}\ = "Settings"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5611AC6E-60BD-4C61-B1B2-793037310CA7}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D677B967-820F-4E84-B43A-118270FFFB80}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Filters\\em2vd.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{BC4EB321-771F-4E9F-AF67-37C631ECA106}\FriendlyName = "Elecard MPEG-2 Video Decoder"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 4244	4940	regsvr32.exe	83
PID 4940 wrote to memory of 4244	4940	regsvr32.exe	83
PID 4940 wrote to memory of 4244	4940	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Filters\em2vd.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Filters\em2vd.dll
  2⤵
  - Modifies registry class
  PID:4244

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Malware Config

Signatures

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MITRE ATT&CK Matrix

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