Malicious PDF — malware analysis report

Static analysis result for SHA-256 54020907d72a15fe…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 10:45:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7950bb0ad99eff9e20180488819886e1 SHA-1: 5ffdd2f3e035032acf8a2c5262dc52a87801b730 SHA-256: 54020907d72a15fe452b776c1718c0ef81d3fa8c9accd4a4f880f9ce27f268af
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 0.9980

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/free-robux-no-verification-or-survey-2021-game-hack PDF link annotation
    • http://library.fisip.upnvj.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/get-free-robux-pc-and-mobile_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/robloz-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-make-free-shirts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-free-robux-instantly-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3135 21820 bytes
SHA-256: 2a33ac67df3e7e2bfddb4cd2e8e527678d5900c7a35f1bf874ed840842251f79
font_01_sfnt_off0000617f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617F 19772 bytes
SHA-256: a441bd845f25f30d9b35deb0a49928c69a030f2d5bccbb8c502819d18c42e29e

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