Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    02-06-2024 16:48

General

  • Target

    91vpn(3.5.4)/91vpn/appface.dll

  • Size

    277KB

  • MD5

    ca69f84b164dd69a96bef1b2761c7596

  • SHA1

    81f352575d8056a8516b9cbb4f73b8c0c6730c28

  • SHA256

    e6870e771feb8095b42f03349032cc08ca01948b6672ad307f7355232970e895

  • SHA512

    f9ffc2ae28cb596f4c010ed860275c2ee2bdf96ac34ee2dd3b20bcf1c636d1f760ece74946c10eb41a031b61882a7eceaeac8b70e6a1d8ca03b02ebcaa38f857

  • SSDEEP

    6144:FTa+ar8WYs/v9tS08ttqgGEp2zL6UQHNWgb5sZN4rZ2BYejlNTqFg91k:FaDxlx8hngH6UQH3CZNkI3O

Score
7/10
upx

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\appface.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\appface.dll,#1
      2⤵
        PID:2756

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2756-1-0x0000000010000000-0x00000000100BC000-memory.dmp

      Filesize

      752KB

    • memory/2756-0-0x0000000010000000-0x00000000100BC000-memory.dmp

      Filesize

      752KB

    • memory/2756-2-0x0000000010000000-0x00000000100BC000-memory.dmp

      Filesize

      752KB