Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17d983b1ee18037…

MALICIOUS

PDF

35.6 KB Created: 2021-07-03 11:42:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bdf8e9f809b6d3b35ab1cac9f27af30e SHA-1: 1cda1e841fb4796774ec81c015a49b4708338ca7 SHA-256: e17d983b1ee1803770456e1c3fa714b3ffef6f5e882ef73e5190fdf8206077bf
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/406889139/how-to-hack-coin-master-game-without-root-game-hack PDF link annotation
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/pubg-uc-free-link_GM1330123889.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/hacks-para-strucid-roblox-2021-octubre-monedas-ilimitadas_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/roblox-dinosaur-simulator-hack-2021_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/minecraft-free-minecoins_GM479516143.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_off0000334e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334E 22928 bytes
SHA-256: 541e5b716049bf8f727cb95d7b842f66516ee0df502d95c619eb373c18dc791f
font_01_sfnt_off000066b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B5 18932 bytes
SHA-256: 09c7132829cd078d9a38136ec8ce06a43dec18f251ee3210dd6d9bf6bbd0cdcb

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