Analysis

  • max time kernel
    129s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 01:02

General

  • Target

    040cef4a919bf259e750029187dcfeff8b4b8f18e6a65cb401ee941d7999dd51.exe

  • Size

    158KB

  • MD5

    d89a424f932b8a69a4657e7ec09944da

  • SHA1

    7e1b1c99d1bc8fdbc8173ca9eda77dd2f4fd287c

  • SHA256

    040cef4a919bf259e750029187dcfeff8b4b8f18e6a65cb401ee941d7999dd51

  • SHA512

    459d3531c2f72637c99cd484f555a558f3aafc8e1d967e2333470863310d34fdfae8f0da3a7f20672e9040aaf2b2be3b3d6195dc6aaf0b9a53d28a40aa4282fe

  • SSDEEP

    3072:qbz+H+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPoKO8Y:qbz+e0ODhTEPgnjuIJzo+PPcfPo18

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

147.185.221.17:55141

Mutex

YnZwwlrYv

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 28 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\040cef4a919bf259e750029187dcfeff8b4b8f18e6a65cb401ee941d7999dd51.exe
    "C:\Users\Admin\AppData\Local\Temp\040cef4a919bf259e750029187dcfeff8b4b8f18e6a65cb401ee941d7999dd51.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3060
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:2872
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
        2⤵
          PID:3064
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
          2⤵
            PID:2744
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
            2⤵
              PID:2180
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
              2⤵
                PID:2132
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                2⤵
                  PID:2284
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                  2⤵
                    PID:2796
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                    2⤵
                      PID:2756
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                      2⤵
                        PID:2868
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                        2⤵
                          PID:2884
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 147.185.221.17 55141 YnZwwlrYv
                          2⤵
                            PID:2888
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x1c8
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:2916

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • memory/3060-0-0x000007FEF6363000-0x000007FEF6364000-memory.dmp

                          Filesize

                          4KB

                        • memory/3060-1-0x0000000000BC0000-0x0000000000BEE000-memory.dmp

                          Filesize

                          184KB