Analysis

  • max time kernel
    151s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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.

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 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 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 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Adds Run key to start application
    • Checks processor information in registry
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3032
    • C:\Users\Admin\AppData\Local\Temp\betab.exe
      "C:\Users\Admin\AppData\Local\Temp\betab.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1348
      • 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 WriteProcessMemory
        PID:4376
      • 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 WriteProcessMemory
        PID:2576
        • 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 use of AdjustPrivilegeToken
          PID:2088
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 1064
            5⤵
            • Program crash
            PID:232
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2088 -ip 2088
    1⤵
      PID:2988

    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

    • memory/2088-151-0x0000000001220000-0x00000000012C9000-memory.dmp

      Filesize

      676KB

    • memory/2088-150-0x0000000001680000-0x000000000168D000-memory.dmp

      Filesize

      52KB

    • memory/2088-149-0x0000000001220000-0x00000000012C9000-memory.dmp

      Filesize

      676KB

    • memory/2088-148-0x0000000000AE0000-0x0000000000F13000-memory.dmp

      Filesize

      4.2MB

    • memory/2088-144-0x0000000000000000-mapping.dmp

    • memory/2576-136-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

    • memory/2576-141-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

    • memory/2576-139-0x00000000022F0000-0x0000000002356000-memory.dmp

      Filesize

      408KB

    • memory/2576-138-0x00000000022F0000-0x0000000002356000-memory.dmp

      Filesize

      408KB

    • memory/2576-145-0x00000000027F0000-0x00000000027FC000-memory.dmp

      Filesize

      48KB

    • memory/2576-146-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/2576-147-0x00000000022F0000-0x0000000002356000-memory.dmp

      Filesize

      408KB

    • memory/2576-133-0x0000000000000000-mapping.dmp

    • memory/3032-137-0x0000000001450000-0x0000000001465000-memory.dmp

      Filesize

      84KB

    • memory/3032-152-0x0000000001450000-0x0000000001465000-memory.dmp

      Filesize

      84KB

    • memory/4376-130-0x0000000000000000-mapping.dmp

    • memory/4376-132-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB