Analysis

  • max time kernel
    157s
  • max time network
    165s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 04:23

General

  • Target

    4.png.lnk

  • Size

    51KB

  • MD5

    5b733b77e3bd909efd9f7acfa58e4770

  • SHA1

    228fe78f80565bc7c02da137505196e9edba767c

  • SHA256

    951ca0adc511173018277b090a9eae3fb389092e095dbc4a0c9b67181dc43d1b

  • SHA512

    6ec7bf392a798a8dc04c9dee2d33190eecf564e2de33559f8b98151c58fc953d330a7165606dc1cc91743d2b8a1c852dba386bb66ea5de354e6cec37b676ce5d

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 57 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\4.png.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&&move "4.png*lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "4.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:3688
      • C:\Windows\system32\forfiles.exe
        forfiles /P "C:\Users\Admin\AppData\Local\Temp" /M "4.pn*.lnk" /S /D 0 /C "C:\Windows\system32\cmd.exe /c move @path C:\Users\Admin\AppData\Local\Temp\1.lnk"
        3⤵
          PID:3592
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
          3⤵
            PID:4272
          • C:\Windows\system32\find.exe
            find "TRU4"
            3⤵
              PID:4088
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" rd a"
              3⤵
                PID:3032
              • C:\Windows\system32\cscript.exe
                cScRiPt "C:\Users\Admin\AppData\Local\Temp\0.js"
                3⤵
                • Deletes itself
                • Suspicious use of WriteProcessMemory
                PID:3204
                • 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:4312
                  • C:\Windows\System32\cscript.exe
                    "C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Local\Temp\reportapi.js
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:4516
                    • C:\Windows\System32\reg.exe
                      "C:\Windows\System32\reg.exe" import C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\MediaPlayer\MediaManager\media.reg
                      6⤵
                        PID:1420
                      • 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:1512
                      • C:\Windows\System32\cscript.exe
                        "C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Local\Temp\reportapi.js
                        6⤵
                          PID:2088
              • 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:2764
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2764 CREDAT:82945 /prefetch:2
                  2⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:4320
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2764 CREDAT:82948 /prefetch:2
                  2⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:2328

              Network

              MITRE ATT&CK Enterprise v6

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