282731b2d3212f21d8777946823514a65eeb73e2b5edba9c15f1f101183e98e5

Analysis

max time kernel
150s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
05/08/2024, 09:14

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General

Target

x86/CommonProgramFiles/SpeechEngines/Microsoft/spcommon.dll
Size

92KB
MD5

8885a4a9e7c66aa127629e696dedba15
SHA1

e7056c88739408c1ea84fdefd86b682115ec182f
SHA256

c07dc6ad049292318d2f3195416da1007a2fb7dbe8320bbec7ab821712b27d04
SHA512

04ec73e7f2f30b3bf5f898c76321163546bfedf29f8cbf7aa8d6c3327af64436565ac605c0becd97ae74f7f0c349b60c451b17b3d64835df7d1b9e74dcc0cf75
SSDEEP

1536:ds5vWqaR2IMM1yOcDfnDws+HfAEtTAY7bzu:dyhIMM1iDfDatTAY7/

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 32 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon.1\CLSID\ = "{685879BA-3263-11D3-9C26-00C04F8EF87C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon\CLSID\ = "{685879BA-3263-11D3-9C26-00C04F8EF87C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon\CurVer\ = "SAPI.LTSLexicon.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\x86\\CommonProgramFiles\\SpeechEngines\\Microsoft\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\x86\\CommonProgramFiles\\SpeechEngines\\Microsoft\\spcommon.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon.1\ = "LTS Lexicon Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\VersionIndependentProgID\ = "SAPI.LTSLexicon"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\x86\\CommonProgramFiles\\SpeechEngines\\Microsoft\\spcommon.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SAPI.LTSLexicon\ = "LTS Lexicon Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\ = "LTS Lexicon Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\ProgID\ = "SAPI.LTSLexicon.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{685879BA-3263-11D3-9C26-00C04F8EF87C}\TypeLib\ = "{410B4FEB-339A-11D2-9602-00C04F8EE628}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9153CE57-F693-4A8E-8B7C-29C8486566D0}\1.0\ = "Microsoft LTScommon Object Library"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 4104	2872	regsvr32.exe	82
PID 2872 wrote to memory of 4104	2872	regsvr32.exe	82
PID 2872 wrote to memory of 4104	2872	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\x86\CommonProgramFiles\SpeechEngines\Microsoft\spcommon.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\x86\CommonProgramFiles\SpeechEngines\Microsoft\spcommon.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4104

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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