2de119b465a2e51cbab3293b51b419c49d6da1f497c68e17549839e0f6ae2a9b

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17/08/2024, 03:08

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General

Target

$SYSDIR/LAVAudio.dll
Size

208KB
MD5

c5ca436d963b7cb2607c71072c9f30ba
SHA1

62e9125889902a8444a7762faf22b2392e1beb67
SHA256

42255c0f5945f4b25b32fb90920905ee52916bb7f9fbec799a8d1e6df10bc26b
SHA512

3e0f20c104093640b22fc969c7d2b237ef1808803d09e72ae1400a07c81439dd8e48c16b5adff717bc5d9b6b3e7cc3403e2ff08f79b7c5d8040f5034328ff5e1
SSDEEP

6144:9+XYoAoKJQ/OV7kz/VLsmHQTHuORLC6L:9Ma7kz/VvHQyyL

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 24 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\FriendlyName = "LAV Audio Decoder"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\FilterData = 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	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD72668E-6BFF-4CD1-8480-D465708B336B}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{20ED4A03-6AFD-4FD9-980B-2F6143AA0892}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{20ED4A03-6AFD-4FD9-980B-2F6143AA0892}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\LAVAudio.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2D8F1801-A70D-48F4-B76B-7F5AE022AB54}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2D8F1801-A70D-48F4-B76B-7F5AE022AB54}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD72668E-6BFF-4CD1-8480-D465708B336B}\ = "LAV Audio Format Settings"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD72668E-6BFF-4CD1-8480-D465708B336B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD72668E-6BFF-4CD1-8480-D465708B336B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\LAVAudio.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\ = "LAV Audio Decoder"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\LAVAudio.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\CLSID = "{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2D8F1801-A70D-48F4-B76B-7F5AE022AB54}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\LAVAudio.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{20ED4A03-6AFD-4FD9-980B-2F6143AA0892}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD72668E-6BFF-4CD1-8480-D465708B336B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{20ED4A03-6AFD-4FD9-980B-2F6143AA0892}\ = "LAV Audio Status"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{20ED4A03-6AFD-4FD9-980B-2F6143AA0892}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2D8F1801-A70D-48F4-B76B-7F5AE022AB54}\ = "LAV Audio Properties"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2D8F1801-A70D-48F4-B76B-7F5AE022AB54}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31
PID 2380 wrote to memory of 2188	2380	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\LAVAudio.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\LAVAudio.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2188

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

Replay Monitor

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Downloads

memory/2188-4-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-2-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-3-0x0000000066C0F000-0x0000000067076000-memory.dmp

Filesize
4.4MB

Download
memory/2188-0-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-8-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-10-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-15-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-68-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-67-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-65-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-70-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-139-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-22-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-69-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-63-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-61-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-59-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-57-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-55-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-51-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-49-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-47-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-45-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-43-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-41-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-39-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-37-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-36-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-34-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-33-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-32-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-30-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-29-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-28-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-27-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-26-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-71-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-66-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-64-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-62-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-21-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-60-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-58-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-56-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-54-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-52-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-50-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-48-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-46-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-44-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-42-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-20-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-40-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-38-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-35-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-19-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-31-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-18-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-17-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-14-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-13-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-12-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-11-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-7-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-1-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/2188-6-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download