kinsing | 56e62518fdf791d5c5f673dcc004b0569c5dd4108e2873adf16cae76fec91e5d

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 16:37

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General

Target

$PLUGINSDIR/CoreAVC.dll
Size

181KB
MD5

c264fed121afd44bda8bf0ff8f4e4269
SHA1

7480a3b26b81045a1504e68e15225682bcc6f440
SHA256

cb8d9d80dcd48d9a9e3d87c847c47125f7201a98fb5abb4bd6c443322071b951
SHA512

99ed4b723b2b7a90fce8e9bf9ee8d5a1440c4d569638ff6a1aa59354c8bca91618a13c440f754fad3ae22c306709da35b4c53b8a00a09753027eaed0d238052b
SSDEEP

3072:eFX0fCcmjZvyTdndzMryzKdvYQ/5c0q3ARsK/l74obxK7Dtp0XRHSOg9lX9cWR82:GEKpZY2r3VYQ/c0d7Hbw7pp0X8hlX6WB

Score

10^/10

kinsing loader

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Modifies registry class 19 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\FriendlyName = "CoreAVC Video Decoder"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\FilterData = 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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\ = "CoreAVC Video Decoder"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F23B1F18-CB1A-47ED-A1FE-B60494A626D0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{345CAA15-4F12-4A28-AFE9-383625563A83}\ = "CoreAVC Video Decoder About"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\CLSID = "{09571A4B-F1FE-4C60-9760-DE6D310C7C31}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAVC.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F23B1F18-CB1A-47ED-A1FE-B60494A626D0}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{345CAA15-4F12-4A28-AFE9-383625563A83}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09571A4B-F1FE-4C60-9760-DE6D310C7C31}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F23B1F18-CB1A-47ED-A1FE-B60494A626D0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAVC.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F23B1F18-CB1A-47ED-A1FE-B60494A626D0}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{345CAA15-4F12-4A28-AFE9-383625563A83}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{345CAA15-4F12-4A28-AFE9-383625563A83}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F23B1F18-CB1A-47ED-A1FE-B60494A626D0}\ = "CoreAVC Video Decoder Info"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{345CAA15-4F12-4A28-AFE9-383625563A83}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAVC.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 3364 wrote to memory of 4724	3364	regsvr32.exe	regsvr32.exe
PID 3364 wrote to memory of 4724	3364	regsvr32.exe	regsvr32.exe
PID 3364 wrote to memory of 4724	3364	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CoreAVC.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3364

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CoreAVC.dll
2⤵
- Modifies registry class
PID:4724

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4724-0-0x0000000010000000-0x00000000100FB000-memory.dmp

Filesize
1004KB

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