Analysis

  • max time kernel
    175s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01/07/2022, 02:40

General

  • Target
    3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe
  • Size 290KB
  • Sample220701-c52n5agfap
  • SHA256 3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • BetaBot

    Beta Bot is a Trojan that infects computers and disables Antivirus.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Sets file execution options in registry 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe
    "C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe
      "C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe"
      2⤵
        PID:2876
      • C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe
        "C:\Users\Admin\AppData\Local\Temp\3f1d2e8d5d89e82cf02d96ac0bb2a219a12eac2f3aa6b1ada0ec072c8222dec8.exe"
        2⤵
        • Sets file execution options in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          3⤵
          • Modifies firewall policy service
          • Sets file execution options in registry
          • Checks BIOS information in registry
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Checks processor information in registry
          • Enumerates system info in registry
          • Modifies Internet Explorer Protected Mode
          • Modifies Internet Explorer Protected Mode Banner
          • Modifies Internet Explorer settings
          • Suspicious use of AdjustPrivilegeToken
          PID:3576
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 1124
            4⤵
            • Program crash
            PID:4688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3576 -ip 3576
      1⤵
        PID:4584

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsbE3DE.tmp\System.dll
            • Size 11KB
            • SHA256 a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
            • MD5 SHA1 SHA512 SSDEEP

            perjurers.dll

            • Path C:\Users\Admin\AppData\Local\Temp\perjurers.dll
            • Size 50KB
            • SHA256 a2631b4404caa7420ebee6273aa9e39228f6fcb28734076c17c805eb9c613b45
            • MD5 SHA1 SHA512 SSDEEP

            memory/2552-140-0x00000000004B0000-0x00000000004BD000-memory.dmp

            memory/2552-141-0x0000000000930000-0x0000000000996000-memory.dmp

            memory/2552-134-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/2552-136-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/2552-137-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/2552-139-0x0000000000930000-0x0000000000996000-memory.dmp

            memory/2552-146-0x0000000000930000-0x0000000000996000-memory.dmp

            memory/2552-143-0x00000000027E0000-0x00000000027EC000-memory.dmp

            memory/2552-145-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/3576-147-0x0000000000800000-0x0000000000C33000-memory.dmp

            memory/3576-148-0x0000000000D00000-0x0000000000DB2000-memory.dmp

            memory/3576-149-0x0000000000D00000-0x0000000000DB2000-memory.dmp