Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    10/05/2022, 05:38

General

  • Target

    Bafwpd.exe

  • Size

    3.3MB

  • MD5

    41d29a47e2cbf59c1bb9eda3f49bd8ce

  • SHA1

    79b7a3b9adbe60d820f5832b99cbe29f23b9946a

  • SHA256

    44e1fc8d3558bd5caa25ec85f99363873fefdab67ec1a478e67a93ffa993c850

  • SHA512

    5ffb26545e062988b08c6a06f10e97df9f6a15cddd8c72724af20dcbf6112eaa85f7bc7a3fbece6c589cf189ca22864972058b005f25eefe347f816c94eb0fe2

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

212.193.30.54:3680

Attributes
  • communication_password

    46821e93230f353d5c46240b0462a0fe

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bafwpd.exe
    "C:\Users\Admin\AppData\Local\Temp\Bafwpd.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 36
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4056
      • C:\Windows\SysWOW64\timeout.exe
        timeout 36
        3⤵
        • Delays execution with timeout.exe
        PID:4560
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
        PID:2632
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        2⤵
          PID:3612
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
          2⤵
            PID:2712
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
            2⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:5108

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/1140-130-0x00000000005D0000-0x000000000091A000-memory.dmp

                Filesize

                3.3MB

              • memory/1140-131-0x00000000057D0000-0x0000000005D74000-memory.dmp

                Filesize

                5.6MB

              • memory/1140-132-0x0000000005300000-0x0000000005392000-memory.dmp

                Filesize

                584KB

              • memory/1140-133-0x00000000052E0000-0x00000000052EA000-memory.dmp

                Filesize

                40KB

              • memory/5108-140-0x0000000000400000-0x00000000007CE000-memory.dmp

                Filesize

                3.8MB

              • memory/5108-141-0x0000000000400000-0x00000000007CE000-memory.dmp

                Filesize

                3.8MB

              • memory/5108-142-0x0000000000400000-0x00000000007CE000-memory.dmp

                Filesize

                3.8MB

              • memory/5108-143-0x0000000000400000-0x00000000007CE000-memory.dmp

                Filesize

                3.8MB