Analysis

  • max time kernel
    320s
  • max time network
    337s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07/05/2022, 21:48

General

  • Target

    448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.ps1

  • Size

    3.1MB

  • MD5

    6889cfb3137ffee92478c3c2bb2a7722

  • SHA1

    3d52224ca0af65863a464c90896270b56b81028e

  • SHA256

    448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc

  • SHA512

    29be084668fd981782ae40bbac90ea1d2730cc2e83a59ffa58ed497de24ff1d75696ca0a437192c8a6ccd1d851fb589a886b455e6f531674162ac8a7754fac66

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bitrat9300.duckdns.org:9300

Attributes
  • communication_password

    e10adc3949ba59abbe56e057f20f883e

  • tor_process

    tor

Signatures

  • BitRAT

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

  • suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

    suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

  • UPX packed file 5 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\448d23c53cc9f4a1a97683474c4e2e7a45ac05570effebc9018924a2c3cc44dc.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
      2⤵
        PID:844
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
        2⤵
          PID:4204
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
          2⤵
            PID:3736
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
            2⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4928

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/2140-130-0x00000261681D0000-0x00000261681F2000-memory.dmp

                Filesize

                136KB

              • memory/2140-131-0x00007FFA0DD00000-0x00007FFA0E7C1000-memory.dmp

                Filesize

                10.8MB

              • memory/4928-132-0x0000000000400000-0x00000000007E4000-memory.dmp

                Filesize

                3.9MB

              • memory/4928-134-0x0000000000400000-0x00000000007E4000-memory.dmp

                Filesize

                3.9MB

              • memory/4928-135-0x0000000000400000-0x00000000007E4000-memory.dmp

                Filesize

                3.9MB

              • memory/4928-136-0x0000000000400000-0x00000000007E4000-memory.dmp

                Filesize

                3.9MB

              • memory/4928-137-0x0000000000400000-0x00000000007E4000-memory.dmp

                Filesize

                3.9MB