13d145b208632cea1403101859df2ef53a276a740b8efa11e04fefaf1a14027b

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
27-08-2024 04:29

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General

Target

$TEMP/alumni_reunions/calendars/retail/VsLogP.dll
Size

6KB
MD5

42741f3de52a793918627eacbf6a45ca
SHA1

31310a08b370b8e56445791d93b6bf87464e808d
SHA256

0e269d428ecc49125bd2ff997a659c47d6b8124d38e1d9102d08e98f64055e85
SHA512

0143fab89d72cf3acea003ac418702dcc8ef3d9788396b7c6d797854904f21b1b024f5d9304346c9e8a1ae23fad25f69b3e01570984f50fdedc47967618c5c2a
SSDEEP

96:UteThBZRibjkt3sb8z6AC+AqAEWrZAdxWPV0:UteTXZRjt3sQzBAq5Wr+dxWN0

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 25 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}\ProxyStubClsid32\ = "{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}\NumMethods\ = "5"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\ProxyStubClsid32\ = "{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}\ = "IVsSqmOptinManager"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\NumMethods\ = "24"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}\ProxyStubClsid32\ = "{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\alumni_reunions\\calendars\\retail\\VsLogP.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}\ = "IVsLog"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{16BE4288-950B-4265-B0DC-280B89CA9979}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}\NumMethods\ = "5"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C1F63D0C-4CAE-4907-BE74-EEB75D386ECB}\ = "IVsSqm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2508FDF0-EF80-4366-878E-C9F024B8D981}\NumMethods	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31
PID 580 wrote to memory of 708	580	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$TEMP\alumni_reunions\calendars\retail\VsLogP.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:580
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$TEMP\alumni_reunions\calendars\retail\VsLogP.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:708

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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