c231a387fdcae2650f939e4dd4cc41a11b14908f7cb5e91eb3de818d33660293

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 15:06

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General

Target

true/vp8encoder.dll
Size

1.6MB
MD5

d5c2a6ac30e76b7c9b55adf1fe5c1e4a
SHA1

3d841eb48d1a32b511611d4b9e6eed71e2c373ee
SHA256

11c7004851e6e6624158990dc8abe3aa517bcab708364d469589ad0ca3dba428
SHA512

3c1c7fb535e779ac6c0d5aef2d4e9239f1c27136468738a0bd8587f91b99365a38808be31380be98fd74063d266654a6ac2c2e88861a3fe314a95f1296699e1d
SSDEEP

49152:OSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSvSSSSSSSSSSSSSSSlwwwwwwwwwwwwww3:OSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSZ

Score

3^/10

discovery

Malware Config

Signatures

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 44 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33D9A760-90C8-11D0-BD43-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\FriendlyName = "WebM VP8 Encoder Filter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\ = "VP8 Encoder Filter Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\true"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder\ = "WebM VP8 Encoder Filter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\CLSID = "{ED3110F5-5211-11DF-94AF-0026B977EEAA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\ = "WebM VP8 Encoder Filter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\true\\vp8encoder.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\TypeLib\ = "{ED3110F4-5211-11DF-94AF-0026B977EEAA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED311102-5211-11DF-94AF-0026B977EEAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33D9A760-90C8-11D0-BD43-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33D9A760-90C8-11D0-BD43-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\FilterData = 0200000000002000020000000000000030706933000000000000000002000000000000000000000030747933000000008000000090000000317479330000000080000000a0000000317069330800000000000000020000000000000000000000307479330000000080000000b0000000317479330000000080000000c00000007669647300001000800000aa00389b715956313200001000800000aa00389b714934323000001000800000aa00389b715650383000001000800000aa00389b715650393000001000800000aa00389b71	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder\CLSID\ = "{ED3110F5-5211-11DF-94AF-0026B977EEAA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder\CurVer\ = "WebM.VP8Encoder.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder.1\ = "WebM VP8 Encoder Filter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder.1\CLSID\ = "{ED3110F5-5211-11DF-94AF-0026B977EEAA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED311102-5211-11DF-94AF-0026B977EEAA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\true\\vp8encoder.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED311102-5211-11DF-94AF-0026B977EEAA}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\ProgID\ = "WebM.VP8Encoder.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED311102-5211-11DF-94AF-0026B977EEAA}\ = "WebM VP8 Encoder Property Page"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED311102-5211-11DF-94AF-0026B977EEAA}\InprocServer32	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\FilterData = 0200000000002000020000000000000030706933000000000000000002000000000000000000000030747933000000008000000090000000317479330000000080000000a0000000317069330800000000000000020000000000000000000000307479330000000080000000b0000000317479330000000080000000c00000007669647300001000800000aa00389b715956313200001000800000aa00389b714934323000001000800000aa00389b715650383000001000800000aa00389b715650393000001000800000aa00389b71	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\true\\vp8encoder.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{33D9A760-90C8-11D0-BD43-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\CLSID = "{ED3110F5-5211-11DF-94AF-0026B977EEAA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\VersionIndependentProgID\ = "WebM.VP8Encoder"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{ED3110F5-5211-11DF-94AF-0026B977EEAA}\FriendlyName = "WebM VP8 Encoder Filter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED3110F4-5211-11DF-94AF-0026B977EEAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED3110F5-5211-11DF-94AF-0026B977EEAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WebM.VP8Encoder\CurVer	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 3400	3964	regsvr32.exe	82
PID 3964 wrote to memory of 3400	3964	regsvr32.exe	82
PID 3964 wrote to memory of 3400	3964	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\true\vp8encoder.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\true\vp8encoder.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

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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