Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 09:26

General

  • Target

    DOCUMENTO REMISORIO PARA VALIDAR.exe

  • Size

    5.1MB

  • MD5

    494ac754c467b6a3b3fc99a0d6c015b5

  • SHA1

    a441b8fb0463c09dd2fede4427280a47bab7ce64

  • SHA256

    4de2cc756df96a38b545b8ca2d3961878b08fe4439c102c339c2fc16596c5423

  • SHA512

    5bf91836bf410bdd654dceb53bd7011b3211620606096a0bea0c89c96ea2195f7bd8c98a1b83b35a984e75a90059e59eb8493c2cc75ee99370d1c1bb1b62191b

  • SSDEEP

    24576:h1kp8QPf2T4+eDjwnEPI+rfb0jq38SkUYvSmbMKVaUBXehOEAhqzuq5mbjNnYQbQ:LM1O7n7u69cZ4Sxc0+T5XY

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bendicion777.con-ip.com:7777

Attributes
  • communication_password

    202cb962ac59075b964b07152d234b70

  • tor_process

    tor

Signatures

  • BitRAT

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

  • UPX packed file 5 IoCs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DOCUMENTO REMISORIO PARA VALIDAR.exe
    "C:\Users\Admin\AppData\Local\Temp\DOCUMENTO REMISORIO PARA VALIDAR.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:1804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4600
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
        PID:4896
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        2⤵
          PID:1064
        • 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:3588

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1064-143-0x0000000000000000-mapping.dmp

      • memory/1804-133-0x0000000005C70000-0x0000000005C92000-memory.dmp

        Filesize

        136KB

      • memory/1804-132-0x0000000000950000-0x0000000000E70000-memory.dmp

        Filesize

        5.1MB

      • memory/3588-151-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-152-0x0000000000400000-0x00000000007E4000-memory.dmp

        Filesize

        3.9MB

      • memory/3588-158-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-157-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-156-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-155-0x0000000074FC0000-0x0000000074FF9000-memory.dmp

        Filesize

        228KB

      • memory/3588-154-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-153-0x0000000075340000-0x0000000075379000-memory.dmp

        Filesize

        228KB

      • memory/3588-150-0x0000000074FC0000-0x0000000074FF9000-memory.dmp

        Filesize

        228KB

      • memory/3588-144-0x0000000000000000-mapping.dmp

      • memory/3588-145-0x0000000000400000-0x00000000007E4000-memory.dmp

        Filesize

        3.9MB

      • memory/3588-146-0x0000000000400000-0x00000000007E4000-memory.dmp

        Filesize

        3.9MB

      • memory/3588-147-0x0000000000400000-0x00000000007E4000-memory.dmp

        Filesize

        3.9MB

      • memory/3588-149-0x0000000000400000-0x00000000007E4000-memory.dmp

        Filesize

        3.9MB

      • memory/4600-135-0x0000000002BB0000-0x0000000002BE6000-memory.dmp

        Filesize

        216KB

      • memory/4600-134-0x0000000000000000-mapping.dmp

      • memory/4600-136-0x0000000005350000-0x0000000005978000-memory.dmp

        Filesize

        6.2MB

      • memory/4600-141-0x0000000006690000-0x00000000066AA000-memory.dmp

        Filesize

        104KB

      • memory/4600-140-0x0000000007A30000-0x00000000080AA000-memory.dmp

        Filesize

        6.5MB

      • memory/4600-139-0x00000000061A0000-0x00000000061BE000-memory.dmp

        Filesize

        120KB

      • memory/4600-138-0x0000000005B50000-0x0000000005BB6000-memory.dmp

        Filesize

        408KB

      • memory/4600-137-0x0000000005A30000-0x0000000005A96000-memory.dmp

        Filesize

        408KB

      • memory/4896-142-0x0000000000000000-mapping.dmp