265c863c1cda7c59859a7e222b30dbadfa2728f0211269ac6f38636e4c486992

Analysis

max time kernel
92s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 03:59

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General

Target

$SYSDIR/cddareader.dll
Size

260KB
MD5

b7d7fb864c0a9db026666c5f4fe03f41
SHA1

0d09fdf842e09c3add9439074ac63117526710f8
SHA256

e9dffd5f24879cf36af0901d82f620891ce738f572db26a6aaf4100932e4f64e
SHA512

cc383c56d778391442a6c51821c791633f7b9533218d41e2a7327355321949754c0eeb6aeaa189a0c73f10af1d509777a53b0c3ac6c880763f56f486b68db72c
SSDEEP

3072:mad+fI2CxCz6SiWVhDERfJ+egGROBuvF15+V8bjd61wr730nUwTj6Q0tl9io/Sfo:y8CmSnDERfcegLUbl6rsQi9io/SW

Score

1^/10

Malware Config

Signatures

Modifies registry class 14 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.cda	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54A35221-2C8D-4A31-A5DF-6D809847E393}\ = "CDDA Reader"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54A35221-2C8D-4A31-A5DF-6D809847E393}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{54A35221-2C8D-4A31-A5DF-6D809847E393}\CLSID = "{54A35221-2C8D-4A31-A5DF-6D809847E393}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{54A35221-2C8D-4a31-A5DF-6D809847E393}\0 = "0,4,,52494646,8,4,,43444441"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\Extensions\.cda\Source Filter = "{54A35221-2C8D-4a31-A5DF-6D809847E393}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{54A35221-2C8D-4A31-A5DF-6D809847E393}\FilterData = 020000000000400001000000000000003070693308000000000000000100000000000000000000003074793300000000380000004800000083eb36e44f52ce119f530020af0ba7708beb36e44f52ce119f530020af0ba770	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{54A35221-2C8D-4a31-A5DF-6D809847E393}\Source Filter = "{54A35221-2C8D-4a31-A5DF-6D809847E393}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54A35221-2C8D-4A31-A5DF-6D809847E393}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\cddareader.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54A35221-2C8D-4A31-A5DF-6D809847E393}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{54A35221-2C8D-4A31-A5DF-6D809847E393}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{54A35221-2C8D-4A31-A5DF-6D809847E393}\FriendlyName = "CDDA Reader"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54A35221-2C8D-4A31-A5DF-6D809847E393}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{e436eb83-524f-11ce-9f53-0020af0ba770}\{54A35221-2C8D-4a31-A5DF-6D809847E393}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2740	2824	regsvr32.exe	83
PID 2824 wrote to memory of 2740	2824	regsvr32.exe	83
PID 2824 wrote to memory of 2740	2824	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\cddareader.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\cddareader.dll
  2⤵
  - Modifies registry class
  PID:2740

Analysis

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Malware Config

Signatures

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MITRE ATT&CK Matrix

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