Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41a334a4eec205f…

MALICIOUS

PDF

35.6 KB Created: 2021-07-08 21:16:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4210054a28b921f113f2335aa455d7a3 SHA-1: 4fd0084f6d65d5208cb03a814a6fbe20f5c470cf SHA-256: e41a334a4eec205f53b189502738c3d6aec3b8760b097f0a446b7751c3fa7169
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/coin-master-free-spins-link-today-new-game-hack PDF link annotation
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/hack-booga-booga-roblox-gratuit-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/rogue-roblox-aim-bot-cheat_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/pastbin-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/hack-juegos-de-roblox_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_off0000322a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322A 23236 bytes
SHA-256: 418d51e980c1396b28bf5562ead2fa5412e99f474f951a9063215a255682a7e7
font_01_sfnt_off00006692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6692 18864 bytes
SHA-256: c2b00cda6ccae936c285d4a8f1a252405c0779bc4d7804dfd8560043eb77b64f

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