Analysis

  • max time kernel
    46s
  • max time network
    81s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2023 19:17

General

  • Target

    docbit20230908.exe

  • Size

    400.0MB

  • MD5

    81e0872e2be9487534ddd879b05e6f62

  • SHA1

    f97c783cb79036a9f2ff27e70a182f1b6919da18

  • SHA256

    d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

  • SHA512

    40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

  • SSDEEP

    98304:XZ7MAV7nUqgfiWsNkFi589X/JiQGTfZ5MULBhT8i4wv7:XZ7tVDUq6iPkFiedRiQePLBpUw

Score
10/10

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

homesafe1000.duckdns.org:1234

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • tor_process

    tor

Signatures

  • BitRAT

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

  • Executes dropped EXE 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe
    "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4860
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3356
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
      2⤵
        PID:5024
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
        2⤵
          PID:3540
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:500
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            3⤵
            • Creates scheduled task(s)
            PID:384
      • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
        C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:4868

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3356-21-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-26-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-38-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-37-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-23-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-5-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-7-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-8-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-36-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-11-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-13-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-33-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-17-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-19-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-35-0x0000000074B80000-0x0000000074BB9000-memory.dmp

        Filesize

        228KB

      • memory/3356-34-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-15-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-27-0x00000000747E0000-0x0000000074819000-memory.dmp

        Filesize

        228KB

      • memory/3356-29-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-28-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-30-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-31-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/3356-32-0x0000000000400000-0x00000000007CE000-memory.dmp

        Filesize

        3.8MB

      • memory/4860-9-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4860-4-0x0000000005070000-0x0000000005080000-memory.dmp

        Filesize

        64KB

      • memory/4860-2-0x0000000005070000-0x0000000005080000-memory.dmp

        Filesize

        64KB

      • memory/4860-0-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4860-3-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4860-1-0x0000000000290000-0x0000000000692000-memory.dmp

        Filesize

        4.0MB