Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-07-2022 13:01

General

  • Target

    betab.exe

  • Size

    407KB

  • MD5

    0837a200fd5a11fab728f51384eb8cce

  • SHA1

    7133b6733d36d28aa19b9366689845b356f2b9fd

  • SHA256

    2701eb12bc858772f0fbb29b7c18c4780afecba78e778f4363a78fc8b39feb48

  • SHA512

    176903813e8b28327f671ee4429a3ab51899e446c63cc84d182cbb6ebe68a85b61e22a83696b9b01e5cb251e7fcaa58c296b237a965045832568eda9b727a86f

Malware Config

Signatures

  • BetaBot

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

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Executes dropped EXE 2 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 5 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 6 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 13 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Adds Run key to start application
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:1320
    • C:\Users\Admin\AppData\Local\Temp\betab.exe
      "C:\Users\Admin\AppData\Local\Temp\betab.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Users\Admin\AppData\Roaming\2.exe
        "C:\Users\Admin\AppData\Roaming\2.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:1124
      • C:\Users\Admin\AppData\Roaming\1.exe
        "C:\Users\Admin\AppData\Roaming\1.exe"
        3⤵
        • Executes dropped EXE
        • Sets file execution options in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:948
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • 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 behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1096
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1268
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1916

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\1.exe

        Filesize

        255KB

        MD5

        9c94decb82adea9cf528ddb56ff5fef1

        SHA1

        d0d3dfb1ea87ea5a72a8e759e35c4bdaed4cfabb

        SHA256

        2a59aa5d2ed61d359908f7cf6c8b099104627869c778a61d92201f392e7aa85e

        SHA512

        3ab32bb2abb5b92e49cc322d29f0bdbc8de79aace3782bd30079455ffcc6f07ecd7c8d10522c0fce07dade813219886fdab7f8ff9e91685a2af42e22302e393c

      • C:\Users\Admin\AppData\Roaming\1.exe

        Filesize

        255KB

        MD5

        9c94decb82adea9cf528ddb56ff5fef1

        SHA1

        d0d3dfb1ea87ea5a72a8e759e35c4bdaed4cfabb

        SHA256

        2a59aa5d2ed61d359908f7cf6c8b099104627869c778a61d92201f392e7aa85e

        SHA512

        3ab32bb2abb5b92e49cc322d29f0bdbc8de79aace3782bd30079455ffcc6f07ecd7c8d10522c0fce07dade813219886fdab7f8ff9e91685a2af42e22302e393c

      • C:\Users\Admin\AppData\Roaming\2.exe

        Filesize

        186KB

        MD5

        5adfa47d7c60b040350f0030c73e4a8f

        SHA1

        cd396b9c81718a20f34413f73082690051a708e3

        SHA256

        e1014e6e143d5bd95b776777c730ec7c5ba67b82d9e60e78c28ff9eebb3ea2b8

        SHA512

        ffd7f515cd3670bd66ed096e77b9845d5e3566ff12755a1ab870dceff3d9d5081e518c5da72f6821727de2ead7d5df18246786968c9abb514a0699992e4a084a

      • C:\Users\Admin\AppData\Roaming\2.exe

        Filesize

        186KB

        MD5

        5adfa47d7c60b040350f0030c73e4a8f

        SHA1

        cd396b9c81718a20f34413f73082690051a708e3

        SHA256

        e1014e6e143d5bd95b776777c730ec7c5ba67b82d9e60e78c28ff9eebb3ea2b8

        SHA512

        ffd7f515cd3670bd66ed096e77b9845d5e3566ff12755a1ab870dceff3d9d5081e518c5da72f6821727de2ead7d5df18246786968c9abb514a0699992e4a084a

      • \Users\Admin\AppData\Roaming\1.exe

        Filesize

        255KB

        MD5

        9c94decb82adea9cf528ddb56ff5fef1

        SHA1

        d0d3dfb1ea87ea5a72a8e759e35c4bdaed4cfabb

        SHA256

        2a59aa5d2ed61d359908f7cf6c8b099104627869c778a61d92201f392e7aa85e

        SHA512

        3ab32bb2abb5b92e49cc322d29f0bdbc8de79aace3782bd30079455ffcc6f07ecd7c8d10522c0fce07dade813219886fdab7f8ff9e91685a2af42e22302e393c

      • \Users\Admin\AppData\Roaming\2.exe

        Filesize

        186KB

        MD5

        5adfa47d7c60b040350f0030c73e4a8f

        SHA1

        cd396b9c81718a20f34413f73082690051a708e3

        SHA256

        e1014e6e143d5bd95b776777c730ec7c5ba67b82d9e60e78c28ff9eebb3ea2b8

        SHA512

        ffd7f515cd3670bd66ed096e77b9845d5e3566ff12755a1ab870dceff3d9d5081e518c5da72f6821727de2ead7d5df18246786968c9abb514a0699992e4a084a

      • memory/948-88-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/948-80-0x0000000001B70000-0x0000000001BD6000-memory.dmp

        Filesize

        408KB

      • memory/948-82-0x0000000002270000-0x000000000227C000-memory.dmp

        Filesize

        48KB

      • memory/948-81-0x00000000003C0000-0x00000000003CD000-memory.dmp

        Filesize

        52KB

      • memory/948-78-0x0000000000400000-0x0000000000443000-memory.dmp

        Filesize

        268KB

      • memory/948-76-0x0000000001B70000-0x0000000001BD6000-memory.dmp

        Filesize

        408KB

      • memory/948-72-0x0000000000000000-mapping.dmp

      • memory/948-89-0x0000000001B70000-0x0000000001BD6000-memory.dmp

        Filesize

        408KB

      • memory/1096-90-0x0000000076F10000-0x0000000077090000-memory.dmp

        Filesize

        1.5MB

      • memory/1096-87-0x0000000073E91000-0x0000000073E93000-memory.dmp

        Filesize

        8KB

      • memory/1096-91-0x0000000000110000-0x00000000001B9000-memory.dmp

        Filesize

        676KB

      • memory/1096-92-0x00000000008F0000-0x00000000008FC000-memory.dmp

        Filesize

        48KB

      • memory/1096-95-0x0000000076F10000-0x0000000077090000-memory.dmp

        Filesize

        1.5MB

      • memory/1096-85-0x0000000000000000-mapping.dmp

      • memory/1096-96-0x0000000000110000-0x00000000001B9000-memory.dmp

        Filesize

        676KB

      • memory/1124-70-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1124-56-0x0000000000000000-mapping.dmp

      • memory/1320-62-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-59-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-79-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-60-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-63-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-69-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-67-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-66-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-93-0x0000000002210000-0x0000000002216000-memory.dmp

        Filesize

        24KB

      • memory/1320-94-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-65-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1320-64-0x0000000002220000-0x0000000002235000-memory.dmp

        Filesize

        84KB

      • memory/1932-54-0x00000000757C1000-0x00000000757C3000-memory.dmp

        Filesize

        8KB