ec4a958ab73fa233b4bb5cbaf68ea3486384997d53740bfa9c3307ce150a59dd

Analysis

max time kernel
145s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
28-04-2024 10:49

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General

Target

shlext64.dll
Size

735KB
MD5

ac59cf438ab7be02489e915ef1023028
SHA1

18ad6c56ee779932fb4df0840a9676679b16c9ef
SHA256

23391cc2ce3a2af2ae52c89815de459e1834c5c53ec588380cb4692ac11f97ca
SHA512

97c240f540b3535da78449ba48352f47fcc0351531322b796b320fd6523b424a9ce65d6d303bc53ddd81df3d586eb6d54723f984296111a61469400500eaf48c
SSDEEP

12288:v33FdHRVKYqZt2Kqm7SwbHkv+nb/HzwpENd7vxtJU7QRi9BjqwT:vfHRkZt2+7SwbHkv+nb/Hz+ENdT/Jy9b

Score

7^/10

persistence

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 18 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFAB9F9-59CA-4B59-BBA7-6E3C783FDEBD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFAB9F9-59CA-4B59-BBA7-6E3C783FDEBD}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFAB9F9-59CA-4B59-BBA7-6E3C783FDEBD}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{340A2687-D23B-4F55-968A-459C697CD02B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon2\CurVer\ = "shlext.PoOverlayIcon2.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon3.1\ = "PoOverlayIcon3 Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon3.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\ProgID\ = "shlext.PoOverlayIcon2.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\poshlext\ = "{0AFAB9F9-59CA-4B59-BBA7-6E3C783FDEBD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{243FE571-9597-4E21-9261-4DF793DBE86C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon\CLSID\ = "{D4CA1384-016E-436C-970E-49E89C56D16A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B9837E26-E9CA-48A0-9AF4-88804B91E316}\TypeLib\ = "{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\shlext.DLL\AppID = "{46D710BA-FB6A-4854-88C4-C9C6DF876C6A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon2.1\ = "PoOverlayIcon2 Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon2\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.DtePropSheet.1\CLSID\ = "{940232A8-FAF8-4B70-A1C6-A0A184579DE2}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{243FE571-9597-4E21-9261-4DF793DBE86C}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\TypeLib	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon3.1	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.DtePropSheet\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.DtePropSheet\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B9837E26-E9CA-48A0-9AF4-88804B91E316}\TypeLib\ = "{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{243FE571-9597-4E21-9261-4DF793DBE86C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{340A2687-D23B-4F55-968A-459C697CD02B}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFAB9F9-59CA-4B59-BBA7-6E3C783FDEBD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shlext64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\ProgID\ = "shlext.DtePropSheet.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{340A2687-D23B-4F55-968A-459C697CD02B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon2\ = "PoOverlayIcon2 Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon3\CurVer	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon.1\ = "PoOverlayIcon Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon3.1\CLSID\ = "{D4CA1384-016E-436C-970E-49E89C56D16C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\poshlext	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{243FE571-9597-4E21-9261-4DF793DBE86C}\ = "IPoOverlayIcon"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{340A2687-D23B-4F55-968A-459C697CD02B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\poshlext	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\TypeLib\ = "{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}\1.0\ = "shlext 1.0 ÀàÐÍ¿â"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B9837E26-E9CA-48A0-9AF4-88804B91E316}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B9837E26-E9CA-48A0-9AF4-88804B91E316}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{340A2687-D23B-4F55-968A-459C697CD02B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\TypeLib\ = "{B32B8169-BE6B-43AC-BE93-20D5BDD0A275}"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{243FE571-9597-4E21-9261-4DF793DBE86C}\ = "IPoOverlayIcon"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{46D710BA-FB6A-4854-88C4-C9C6DF876C6A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\shlext.PoOverlayIcon	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16A}\ProgID	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D4CA1384-016E-436C-970E-49E89C56D16C}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\poshlext	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{940232A8-FAF8-4B70-A1C6-A0A184579DE2}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B9837E26-E9CA-48A0-9AF4-88804B91E316}\TypeLib\Version = "1.0"	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\shlext64.dll
1⤵
- Registers COM server for autorun
- Modifies registry class
PID:4288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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