Malicious PDF — malware analysis report

Static analysis result for SHA-256 f70ecaa54f53b37d…

MALICIOUS

PDF

33.4 KB Created: 2021-07-06 12:19:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 868bdcfbb3a746450fcfe8934fefaa84 SHA-1: 3834cd02d4d8a39f754e9fc3b6d8c077ce2bfeac SHA-256: f70ecaa54f53b37de32022788ec563f6bbe7332aa9b2d37e4abafababc92100d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/how-to-get-free-unlimited-robux-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/free-meeting-center-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-studio-free-download-windows-10_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-snowman-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-free-avatar-stuff_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-2021-easy-no-inspect_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-mot-de-passe-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-free-builders-club-generator_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/sex-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/www-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD8 22380 bytes
SHA-256: c28b8762efcfc5b8bbbb067a8425dfd1c483ce6704ea2f0c584712fca0acb2f3
font_01_sfnt_off00005c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C53 19612 bytes
SHA-256: 9f90138c9e24558c53d7d73a6f9335c7ab378dcf12bc1965008c03c765cdf622

Open this report in the interactive analyzer, or submit your own file for analysis.