Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15-05-2021 14:41

General

  • Target

    62ee56badb9240aeb1e5b6e6256e0e1bfc5314f2a0c9d8b816d022c6955fab2b.exe

  • Size

    768KB

  • MD5

    87eb0ff2fac6f376f08047aedc54691e

  • SHA1

    4e2bfe1433bdd0d1b52de35d631560479bb52746

  • SHA256

    62ee56badb9240aeb1e5b6e6256e0e1bfc5314f2a0c9d8b816d022c6955fab2b

  • SHA512

    aca36e77d5045a834898879a2a969a09503211914e8f9916bd2daa5a72ca4097591329b3ed68b1509ce37771d4945a0afa74b12dea84b32f4d29b8730720f6a8

Score
10/10

Malware Config

Signatures

  • BadRabbit

    Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

  • Executes dropped EXE 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62ee56badb9240aeb1e5b6e6256e0e1bfc5314f2a0c9d8b816d022c6955fab2b.exe
    "C:\Users\Admin\AppData\Local\Temp\62ee56badb9240aeb1e5b6e6256e0e1bfc5314f2a0c9d8b816d022c6955fab2b.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3176
    • C:\Users\Admin\AppData\Local\Temp\~87eb0ff2.exe
      "C:\Users\Admin\AppData\Local\Temp\~87eb0ff2.exe"
      2⤵
      • Executes dropped EXE
      PID:3980
  • C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
      2⤵
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3900
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Delete /F /TN rhaegal
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:196
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Delete /F /TN rhaegal
          4⤵
            PID:1468
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 2850603417 && exit"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2020
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 2850603417 && exit"
            4⤵
            • Creates scheduled task(s)
            PID:2872
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 00:42:00
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1400
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 00:42:00
            4⤵
            • Creates scheduled task(s)
            PID:3940
        • C:\Windows\8916.tmp
          "C:\Windows\8916.tmp" \\.\pipe\{A0B51934-4050-4C29-B75A-05EC74F0B99C}
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2792

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/3176-114-0x0000000000A70000-0x0000000000A71000-memory.dmp

      Filesize

      4KB

    • memory/3900-120-0x0000000003940000-0x00000000039A8000-memory.dmp

      Filesize

      416KB

    • memory/3900-125-0x0000000003940000-0x00000000039A8000-memory.dmp

      Filesize

      416KB

    • memory/3980-118-0x0000000000800000-0x0000000000801000-memory.dmp

      Filesize

      4KB