Analysis

  • max time kernel
    13s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-02-2021 14:11

General

  • Target

    feedback_form.exe

  • Size

    1.9MB

  • MD5

    5431a710d8a0c6bc319125ea7c40efd1

  • SHA1

    ae52c3ea465ced7137948a7be6630231affb94a0

  • SHA256

    1c10a7cf57b58de1cb5d0a6e1369a2cf5dd74fc1593c45b991dde7605ff01486

  • SHA512

    80910c4f85f680877cf59a5ceaea703a459636dd9e473febff1d35c3c0dc5405099ce604b0a9b98847b78b0b7b550b007fdb19a2ed7ab08f9587fdb30724d727

Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\feedback_form.exe
    "C:\Users\Admin\AppData\Local\Temp\feedback_form.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Users\Admin\AppData\Local\Temp\feedback_form.exe"
      2⤵
        PID:3948
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Users\Admin\AppData\Local\Temp\feedback_form.exe"
        2⤵
          PID:192
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Users\Admin\AppData\Local\Temp\feedback_form.exe"
          2⤵
            PID:204
        • C:\Windows\SysWOW64\DllHost.exe
          C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
          1⤵
          • Drops startup file
          PID:2912

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/740-2-0x00000000023F0000-0x00000000023F1000-memory.dmp

          Filesize

          4KB

        • memory/740-3-0x00000000025A0000-0x000000000261B000-memory.dmp

          Filesize

          492KB

        • memory/740-9-0x0000000002AA0000-0x0000000002C2E000-memory.dmp

          Filesize

          1.6MB