e7540e416771a4532807a975e55c934110fd0d1f906d08a400b133e94bebe4c9

Resubmissions

11/09/2024, 18:46

240911-xe5y3swfpp 7

Analysis

max time kernel
51s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2024, 18:46

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General

Target

DolbyDspVlldp.dll
Size

473KB
MD5

e24cc16cd31289615ca2fd27696d8822
SHA1

13533fee4b51ef84a5d53ed2a625e58f8764b14d
SHA256

ff2b2492ed41ae2588c876fb96f01b9cec22a1a27be06b9a692732455e3d1aa6
SHA512

4148daff69e7942a99978905130c5fcb5c64beafb4ca399d0a0104f5167b392c753123a0871a540c11921dac685bde6f6da6689a660127f54f3ca7ef868d2af1
SSDEEP

6144:gNSYIn22TNmhGUFSilJUlEAmpbJveBCf7ErCxMDC6X89LohaUJngsKohcJZS/vs:iSYMTEjFJcEl37c9MtoBJgLYp/v

Score

7^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Modifies registry class 32 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\0\win64\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DolbyDspVlldp.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\NumMethods\ = "42"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DolbyDspVlldp.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\0\win64	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\TypeLib\ = "{4518CEC8-1FCB-4702-91CF-78010802732F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\ = "DolbyDspVlldp Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DolbyDspVlldp.dll"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\Interface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\ = "IDolbyDspVlldp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{783B43CB-2CFA-4629-BA89-E53A765BE358}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4518CEC8-1FCB-4702-91CF-78010802732F}\1.0\ = "DolbyDspVlldpLib"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}\ProxyStubClsid32\ = "{A7C157DC-D9B2-49FD-B239-B74CF59D17AC}"	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\DolbyDspVlldp.dll
1⤵
- Modifies registry class
PID:1644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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