Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01/07/2022, 15:04

General

  • Target
    3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d.exe
  • Size 327KB
  • Sample220701-sfy5pshdbl
  • SHA256 3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d
  • 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 3 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d.exe
    "C:\Users\Admin\AppData\Local\Temp\3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d.exe
      "C:\Users\Admin\AppData\Local\Temp\3dad9b4bab250ac2b613d2976439ba3affc0af117247c152b9fe672ab02b879d.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:2528
      • 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:1512
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 1140
          4⤵
          • Program crash
          PID:4184
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1512 -ip 1512
    1⤵
      PID:4264

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsj5FAA.tmp\System.dll
          • Size 11KB
          • SHA256 7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528
          • MD5 SHA1 SHA512 SSDEEP

          seminarian.dll

          • Path C:\Users\Admin\AppData\Local\Temp\seminarian.dll
          • Size 68KB
          • SHA256 2afb0ffe845281841359a9416439080e2c7a31a6af391f878d877519347c0f1c
          • MD5 SHA1 SHA512 SSDEEP

          seminarian.dll

          • Path C:\Users\Admin\AppData\Local\Temp\seminarian.dll
          • Size 68KB
          • SHA256 2afb0ffe845281841359a9416439080e2c7a31a6af391f878d877519347c0f1c
          • MD5 SHA1 SHA512 SSDEEP

          memory/1512-149-0x0000000001010000-0x00000000010CB000-memory.dmp

          memory/1512-148-0x0000000001010000-0x00000000010CB000-memory.dmp

          memory/1512-147-0x00000000004F0000-0x0000000000923000-memory.dmp

          memory/2528-139-0x00000000022D0000-0x0000000002336000-memory.dmp

          memory/2528-138-0x0000000000400000-0x0000000000435000-memory.dmp

          memory/2528-141-0x0000000000400000-0x0000000000435000-memory.dmp

          memory/2528-143-0x0000000000600000-0x000000000060D000-memory.dmp

          memory/2528-142-0x00000000022D0000-0x0000000002336000-memory.dmp

          memory/2528-144-0x00000000027E0000-0x00000000027EC000-memory.dmp

          memory/2528-137-0x0000000000400000-0x0000000000435000-memory.dmp

          memory/2528-146-0x00000000022D0000-0x0000000002336000-memory.dmp

          memory/2528-135-0x0000000000400000-0x0000000000435000-memory.dmp

          memory/3368-133-0x0000000004FF0000-0x0000000005002000-memory.dmp