051a80a2a82dd18faa9d0738c5403f3f0dbd0926e0525a445596cc6ef2d7d754

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19-04-2024 23:51

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General

Target

$_2_/DownloadProxyPS.dll
Size

67KB
MD5

9c629978377e3edc8d0b001115f93eec
SHA1

c563aad2e04b0e69b3ceeb722f7f7e85dd3cb410
SHA256

1ce25ffc0d8671f5c44573ec190533860cc3bec823d2dcfaf4548a0bd76add50
SHA512

34cb1eafd31385094bc0f2f03da80fb94662a7a966dff7f9be974b5e850e2c588e82546edfaf244b7f20046fd63421495b7a429d50184d074b83208d86dcd619
SSDEEP

768:A1fVSO9ZV/algl30jcuPv114iNpdVtAcpg5n:OAOkeEcuXVN9tVpgF

Score

1^/10

Malware Config

Signatures

Modifies registry class 31 IoCs

Processes:

regsvr32.exe

description	ioc	process
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\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\ = "IDownloader_2"	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}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	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\{B9E49847-9822-4139-BC55-7173ED1ADA11}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\ = "IDownloader"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\NumMethods\ = "15"	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\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}\NumMethods	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000_Classes\WOW6432Node\Interface	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\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\NumMethods	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}	regsvr32.exe
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}\ProxyStubClsid32\ = "{B9E49847-9822-4139-BC55-7173ED1ADA11}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D341BF-13DD-457E-BAFB-D3FC0C442CA4}\ = "IDownloader_4"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B9E49847-9822-4139-BC55-7173ED1ADA11}\ = "IDownloader_3"	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
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\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7044CE4B-FE34-4DD1-A0FA-157E1E179ECA}	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\{6B3732AA-F6D4-4F16-9E22-49EDC52C9514}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 3952 wrote to memory of 2072	3952	regsvr32.exe	regsvr32.exe
PID 3952 wrote to memory of 2072	3952	regsvr32.exe	regsvr32.exe
PID 3952 wrote to memory of 2072	3952	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_2_\DownloadProxyPS.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\$_2_\DownloadProxyPS.dll
2⤵
- Modifies registry class
PID:2072

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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