7c4d18253a31342fcc83a7f7748ba843f6ee00bff18b9204a4e9c447919fc989

Analysis

max time kernel
90s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 08:49

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General

Target

PDFMVisio.dll
Size

2.4MB
MD5

bc85f9e09a7f100283e1216c4424b025
SHA1

446e0efa7c775fc86ed0760e7ad135cc58e462de
SHA256

9b327b19e1ed875d37a5c04104ad9c4d9c6077010b71dfb23a5434665b9485be
SHA512

ccd286528e965be3bdf61d8ca07b86034c932b2b84c7499f7f2b54f806aadf800ac78e48e9e40760cee2acaee67b205b270820faed0976f16eaeda8856e4c5b9
SSDEEP

49152:IslQ9NuV4p9T5uGLeYoDQ1O+QtD9GX7eTA/TWOHnvAX:5KNuVIt5uGKjDQ1ORtD9GX72A/TWOHv

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

Processes:

regsvr32.exe

description ioc process

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

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

Modifies registry class 44 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisioCOMAddin	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisioCOMAddin\ = "PDFMaker for Visio COMAddin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib\ = "{F05F6A50-665F-49F2-ABA1-56125C9B552B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}\ = "PDFMaker for Visio COMAddin"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisio\CLSID\ = "{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisio\ = "PDFMaker for Visio object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\ = "PDFMaker for Visio 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}\ = "PDFMaker for Visio object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PDFMVisio.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisioCOMAddin\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PDFMVisio.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ = "IPDFMVisioCreationStatusEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}\ProgID\ = "PDFMVisio.PDFMVisio"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ = "IPDFMVisioCreationStatusEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\TypeLib\ = "{F05F6A50-665F-49F2-ABA1-56125C9B552B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PDFMVisio.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisio\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisioCOMAddin\CLSID\ = "{551B31B1-4390-4f18-BE10-6841EF69DD51}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F05F6A50-665F-49F2-ABA1-56125C9B552B}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFMVisio.PDFMVisio	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{551B31B1-4390-4f18-BE10-6841EF69DD51}\ProgID\ = "PDFMVisio.PDFMVisioCOMAddin"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6510ABA2-8298-4201-945B-2E64F5AA45B6}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D2D9B28-0B05-4b9d-B3EA-9FB1B9180E53}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 5124 wrote to memory of 6000	5124	regsvr32.exe	regsvr32.exe
PID 5124 wrote to memory of 6000	5124	regsvr32.exe	regsvr32.exe
PID 5124 wrote to memory of 6000	5124	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\PDFMVisio.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5124
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\PDFMVisio.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:6000

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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