Analysis

  • max time kernel
    100s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-09-2022 11:08

General

  • Target

    Flag-'A'-LOC_flowcharts-New.doc.js

  • Size

    290KB

  • MD5

    16b292e205cae359bddba8052ee51ab1

  • SHA1

    45e704ed5995a83b56146034e7c42172c3bacf7a

  • SHA256

    942e26b9c769bbfd6a9cb2237d4b7a0788d95bc2a144f41bba38b300133027ff

  • SHA512

    07fa4f502555dd057f490f43937f85ea7856fee33f34b36dd1ad5e96afdc650548dc932ee2df15a5ea0f7197cfed2a70578e57513a92b191df1a7c83f4016334

  • SSDEEP

    3072:Cj+nRsIgyLXBJgHj8m/b4aMnODn0ACJAMotP/0Q5oY/mEVbN:rnRsIgC3ij8m/bMOgotP8QqCHbN

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Flag-'A'-LOC_flowcharts-New.doc.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\win.js" PfkeDoGrcYlpF7dqI4j_
      2⤵
        PID:1932
      • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Flag-'A'-LOC_flowcharts-New.doc"
        2⤵
        • Drops file in Windows directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          3⤵
            PID:1344

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\win.js

        Filesize

        18KB

        MD5

        16530898d8dd54709617f122c1a49151

        SHA1

        6a1f8ed00c44e969d26575e47d855eab992820cc

        SHA256

        e47c22fc09636037e95b0a15fd6849c381ec94975e04830b56d45ac7983de4e4

        SHA512

        42b18a19e65f39b5d6b8e6bba44acc6d3e4cfa20bce2533bb55dcd4a5a33f124af8670322bd6474241ad446de7ee89b4121389b4fbc8a6027688ce3c67721381

      • C:\Users\Admin\AppData\Local\Temp\Flag-'A'-LOC_flowcharts-New.doc

        Filesize

        195KB

        MD5

        7b4cd9aed159f43c351353fa5ab1f002

        SHA1

        a21d82264ac6a972dbf3e3d857cef00703fc036e

        SHA256

        5e2cab6efb3b6ceacbd857fc6a97841d649b3c1902a4e63d1bfb7b366148cccd

        SHA512

        099348ade1c4d683a41b4c8725743945d2c14507f02ee73bf7cff6a5c131e4235b0e5ff80ef1931c1ffbd772c5cb7e3e4b927b922c4070d3409c2da927141eb5

      • memory/1188-60-0x00000000758B1000-0x00000000758B3000-memory.dmp

        Filesize

        8KB

      • memory/1188-57-0x0000000072501000-0x0000000072504000-memory.dmp

        Filesize

        12KB

      • memory/1188-58-0x000000006FF81000-0x000000006FF83000-memory.dmp

        Filesize

        8KB

      • memory/1188-59-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1188-56-0x0000000000000000-mapping.dmp

      • memory/1188-62-0x0000000070F6D000-0x0000000070F78000-memory.dmp

        Filesize

        44KB

      • memory/1188-63-0x0000000070F6D000-0x0000000070F78000-memory.dmp

        Filesize

        44KB

      • memory/1188-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1188-67-0x0000000070F6D000-0x0000000070F78000-memory.dmp

        Filesize

        44KB

      • memory/1344-64-0x0000000000000000-mapping.dmp

      • memory/1344-65-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp

        Filesize

        8KB

      • memory/1932-54-0x0000000000000000-mapping.dmp