b9dcc8549db96b5e7c34de27a99e7253374b9846b4de3780e414cd6b487383a9

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
06/07/2024, 04:46

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General

Target

4369ebeb8f80c333e054687cbb33ece0.dll
Size

244KB
MD5

4369ebeb8f80c333e054687cbb33ece0
SHA1

29acd85fa76fa3c210efc053c88f1891811ba17c
SHA256

b9dcc8549db96b5e7c34de27a99e7253374b9846b4de3780e414cd6b487383a9
SHA512

b589b5c5ec6cdeaabe7adb524382a7ba2ea7ccf6eb865ed9dc1369156bbf7a533597187bba760c805497cac94547f984ef3537c021a009bf0e113e88531cfd14
SSDEEP

3072:RbXLbfyOyyCxqji60EQ7ce3FXNA6FbR+9++ecpnsIo:ly8An60Bce3FXNA6FbR+9++xZ

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 17 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F7A76C21-53D4-46BB-AC53-8B459CAE46BD}\ = "XAudio2Debug"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C1E3F122-A2EA-442C-854F-20D98F8357A1}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F4769300-B949-4DF9-B333-00D33932E9A6}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E21A7345-EB21-468E-BE50-804DB97CF708}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E21A7345-EB21-468E-BE50-804DB97CF708}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E21A7345-EB21-468E-BE50-804DB97CF708}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4369ebeb8f80c333e054687cbb33ece0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F7A76C21-53D4-46BB-AC53-8B459CAE46BD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C1E3F122-A2EA-442C-854F-20D98F8357A1}\ = "AudioVolumeMeter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C1E3F122-A2EA-442C-854F-20D98F8357A1}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F4769300-B949-4DF9-B333-00D33932E9A6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E21A7345-EB21-468E-BE50-804DB97CF708}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C1E3F122-A2EA-442C-854F-20D98F8357A1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C1E3F122-A2EA-442C-854F-20D98F8357A1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4369ebeb8f80c333e054687cbb33ece0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F4769300-B949-4DF9-B333-00D33932E9A6}\ = "AudioReverb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E21A7345-EB21-468E-BE50-804DB97CF708}\ = "XAudio2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F4769300-B949-4DF9-B333-00D33932E9A6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4369ebeb8f80c333e054687cbb33ece0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F4769300-B949-4DF9-B333-00D33932E9A6}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4369ebeb8f80c333e054687cbb33ece0.dll
1⤵
- Modifies registry class
PID:2208

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

Windows 7 deprecation

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