045004ce594115c91ee0c8b949c1192794291e234f64df034101f99784b651f8

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 20:00

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General

Target
$_2_/DownloadProxyPS.dll
Size 67KB
Sample240507-yrfqdsfg63
SHA256 1ce25ffc0d8671f5c44573ec190533860cc3bec823d2dcfaf4548a0bd76add50
MD5 9c629978377e3edc8d0b001115f93eec
SHA1 c563aad2e04b0e69b3ceeb722f7f7e85dd3cb410
SHA512 34cb1eafd31385094bc0f2f03da80fb94662a7a966dff7f9be974b5e850e2c588e82546edfaf244b7f20046fd63421495b7a429d50184d074b83208d86dcd619
SSDEEP 768:A1fVSO9ZV/algl30jcuPv114iNpdVtAcpg5n:OAOkeEcuXVN9tVpgF
MD5 SHA1 SHA512 SSDEEP

Score

1^/10

Malware Config

Signatures

Modifies registry class 31 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\ = "IDownloader_2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\NumMethods\ = "15"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ = "IDownloader_3"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\NumMethods\ = "7"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\NumMethods\ = "6"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ = "PSFactoryBuffer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\ = "IDownloader"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\ = "IDownloader_4"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\NumMethods\ = "4"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_2_\\DownloadProxyPS.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28
PID 880 wrote to memory of 1312	880	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_2_\DownloadProxyPS.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$_2_\DownloadProxyPS.dll
  2⤵
  - Modifies registry class
  PID:1312

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