4035c29e2effbbb4dfbb5827791653f70d17d8064a536081a87875a784eee013 | Triage

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 22:30

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General

Target

$R0.dll
Size

48KB
MD5

259b414cd4a28dade048139a3507cb88
SHA1

2b7ac7f5356add8151c312dcec80148ba420cfa6
SHA256

55633a3d6b77a7d2279f4fe9e02ae4cb5b5bf34a23bfae7a119518c0ecef09e9
SHA512

377fa37e3ea0cfde65833a21693acfdddadbde04c180dc9209c7b6592ac402f273b7181295338ed9333a42140e54700dfbbc7a430979cb2e7692ee7c869b8c93
SSDEEP

1536:+D+6RdfLMf6OOOOOOOOOOOOrrBjw8PZ7M:gHRdT46OOOOOOOOOOOOrrxw8PZM

Score

1^/10

Malware Config

Signatures

Modifies registry class 8 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}\ = "FileZilla 3 Shell Extension"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$R0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\directory\shellex\CopyHookHandlers\FileZilla3CopyHook	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\CopyHookHandlers\FileZilla3CopyHook\ = "{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB70412E-EEC9-479C-BBA9-BE36BFDDA41B}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 4960 wrote to memory of 740	4960	regsvr32.exe	regsvr32.exe
PID 4960 wrote to memory of 740	4960	regsvr32.exe	regsvr32.exe
PID 4960 wrote to memory of 740	4960	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$R0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4960

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\$R0.dll
2⤵
- Modifies registry class
PID:740

Network

MITRE ATT&CK Matrix

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