d8a387313a1a41c983729bf989d7c99fe92315884cd1327da210b65c173e9574 | Triage

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2024, 15:47

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General

Target

Codecs/asfsplliter.dll
Size

64KB
MD5

4a7e26d268c355fb5da19a4400e7770b
SHA1

ebe3c19a94e12c2a5d39bc816317961797a6c89b
SHA256

5c44df6b0d4d212271a1ca4c008ea003a2dd1168059333169b3562c51065c3e9
SHA512

db5f0161d64b27cebc6de443e68cf596725ea1034f20c58f2a019f2d50e67574e33ffe65e8f5a9b21095cd2f309a97b58ee3603e528276aeefa67c9d7b3234f6
SSDEEP

768:Y9We0OJXnfX2c+AOW8gpukVl5sqiCpl3il7T59bSob4p9Gk0:Y9WEXn/2c+7jlkV4dCpN67t9bSXG5

Score

1^/10

Malware Config

Signatures

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\ = "QVOD ASF Splliter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\asfsplliter.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\FriendlyName = "QVOD ASF Splliter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\CLSID = "{1932C124-77DA-4151-99AA-234FEA09F463}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\FilterData = 02000000000060000300000000000000307069330000000000000000010000000000000000000000307479330000000088000000980000003170693308000000000000000100000000000000000000003074793300000000a8000000b80000003270693308000000000000000100000000000000000000003074793300000000c8000000b800000083eb36e44f52ce119f530020af0ba77001086d6bda9ad011a52000a0d10129c07669647300001000800000aa00389b71000000000000000000000000000000006175647300001000800000aa00389b71	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 4104	4384	regsvr32.exe	84
PID 4384 wrote to memory of 4104	4384	regsvr32.exe	84
PID 4384 wrote to memory of 4104	4384	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Codecs\asfsplliter.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Codecs\asfsplliter.dll
  2⤵
  - Modifies registry class
  PID:4104

Network

MITRE ATT&CK Matrix

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