84ba766b1f292df812017d9c8549bd1026fbdd12b3eabe0e9ad491774f175ab8

Analysis

max time kernel
134s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-10-2024 18:33

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General

Target

Drivers/wnd7audio/SysFxUI.dll
Size

335KB
MD5

ce8685ecab192356a1ccd8946bc93daa
SHA1

c71bbc28ee270fb32e1267caf80713c1a1c07c8b
SHA256

6afe404bd9a3f4cdf0c4f8ca64ba9988762219d4c5573a268fb5e8a33bfafb4f
SHA512

c967da5be38a181ffb32ef5b70fcfb022ce2ed473741f00ea622be6e57062e8df98163e7db367f3b0b9788e7d18a8b2621f08162cb9f49add9bd1cde906f0344
SSDEEP

3072:zWOyuyOotvkTo9o0a1X6dAEdzf6qAwBsE1Jxd5KkyH:iOyuyOQcZ6hBf6qjBsMfyH

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87D5F036-FAC3-4390-A1E8-DFA8A62C09E7}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Drivers\\wnd7audio\\SysFxUI.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\ = "IMyPageFactory"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A7D2EC8B-B70F-434C-A0CE-0DF324805F7D}\ = "SysFxUi"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\SysFxUi.DLL\AppID = "{A7D2EC8B-B70F-434C-A0CE-0DF324805F7D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\TypeLib\ = "{87D5F036-FAC3-4390-A1E8-DFA8A62C09E7}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Drivers\\wnd7audio\\SysFxUI.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E6DB299B-B925-415A-879B-4A76D072F39A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}\ = "CplPage Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 1604	2668	regsvr32.exe	86
PID 2668 wrote to memory of 1604	2668	regsvr32.exe	86
PID 2668 wrote to memory of 1604	2668	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Drivers\wnd7audio\SysFxUI.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Drivers\wnd7audio\SysFxUI.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

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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