Analysis

  • max time kernel
    122s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-01-2025 19:35

General

  • Target

    Factura.exe

  • Size

    337KB

  • MD5

    60274794f3fb71d2d5ba5e79040e848a

  • SHA1

    540d7a3a0923aa576185561d931616b10a069074

  • SHA256

    49b4309c8ed22ee8489f94f5fa9723c019e8d62b84fb284156f7211fe515fe87

  • SHA512

    1c7e29c213ca2b9e8237f0c0f214ae1ffb334d418c36b659fbe7ebe44c30fe1f4748c77407914ddb1cc3a830a7abedd1fc680e3d969199bfe1304ef3c482c39b

  • SSDEEP

    6144:mgyJN9fUXZ858P8GkWF6JVUs4yVrgBaoZdjW/CVzT8yrJLnIgEO:YJN9I2EZku6Jms4yEdjWqVzPrJLIgEO

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Factura.exe
    "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Users\Admin\AppData\Local\Temp\Factura.exe
      "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
      2⤵
        PID:2256
      • C:\Users\Admin\AppData\Local\Temp\Factura.exe
        "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
        2⤵
          PID:2356
        • C:\Users\Admin\AppData\Local\Temp\Factura.exe
          "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
          2⤵
            PID:484
          • C:\Users\Admin\AppData\Local\Temp\Factura.exe
            "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
            2⤵
              PID:864
            • C:\Users\Admin\AppData\Local\Temp\Factura.exe
              "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
              2⤵
                PID:2328
              • C:\Users\Admin\AppData\Local\Temp\Factura.exe
                "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
                2⤵
                  PID:2324
                • C:\Users\Admin\AppData\Local\Temp\Factura.exe
                  "C:\Users\Admin\AppData\Local\Temp\Factura.exe"
                  2⤵
                  • Accesses Microsoft Outlook profiles
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • outlook_office_path
                  • outlook_win_path
                  PID:2340
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 552
                  2⤵
                  • Program crash
                  PID:2856

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/2340-15-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2340-11-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-3-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-4-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-19-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2340-6-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-18-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2340-5-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2340-13-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2340-16-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2340-9-0x0000000000400000-0x0000000000448000-memory.dmp

                Filesize

                288KB

              • memory/2456-14-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2456-17-0x0000000074A10000-0x00000000750FE000-memory.dmp

                Filesize

                6.9MB

              • memory/2456-1-0x0000000000210000-0x000000000026A000-memory.dmp

                Filesize

                360KB

              • memory/2456-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

                Filesize

                4KB