Analysis

  • max time kernel
    70s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    04-07-2021 16:45

General

  • Target

    be38a69081db308b628205a8d3bf1053120da733b05f38ac497a295723d2b29f.exe

  • Size

    807KB

  • MD5

    1032e6ffdbb406b3ee80d7c50989e2b5

  • SHA1

    fb63c770ba76d25f181be481acef62aa2cf5f82c

  • SHA256

    be38a69081db308b628205a8d3bf1053120da733b05f38ac497a295723d2b29f

  • SHA512

    bd5203164dd2a966c1db164f6d472615932a673d7be6105c5c36a130e1bb7582e4a9a479833ecbc102c36a5786ef1e459b8eec944beb8cdf51c763078a2923f3

Score
7/10

Malware Config

Signatures

  • Uses the VBS compiler for execution 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be38a69081db308b628205a8d3bf1053120da733b05f38ac497a295723d2b29f.exe
    "C:\Users\Admin\AppData\Local\Temp\be38a69081db308b628205a8d3bf1053120da733b05f38ac497a295723d2b29f.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GrxeqzFZZljX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp909C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:656
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:1664
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
          PID:1456
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          2⤵
            PID:524
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
            2⤵
              PID:1868
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
              2⤵
                PID:808

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\tmp909C.tmp

              MD5

              551e4867c804267ae628031d0cf8d744

              SHA1

              5232905667b05c261df6c2e143e3e8823bafdc96

              SHA256

              41ec101e560e90a1fffb39511abc9e3484f0e878c8e9190fb25206fd99611774

              SHA512

              c5865afd45e09c197a541f1d6260705fe927e20feb3517c95eda4ce986bcd6d52767bff3c936f6afba5369a513cc150e2623117c52cec45f35c4ba417bb902b7

            • memory/656-66-0x0000000000000000-mapping.dmp

            • memory/736-60-0x0000000001080000-0x0000000001081000-memory.dmp

              Filesize

              4KB

            • memory/736-62-0x0000000000F90000-0x0000000000F91000-memory.dmp

              Filesize

              4KB

            • memory/736-63-0x0000000009DD0000-0x000000000BDCF000-memory.dmp

              Filesize

              32.0MB

            • memory/736-64-0x0000000005170000-0x00000000051D7000-memory.dmp

              Filesize

              412KB

            • memory/736-65-0x0000000000620000-0x000000000064C000-memory.dmp

              Filesize

              176KB