Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1e1ae0956a43aa…

MALICIOUS

PDF

33.6 KB Created: 2021-06-26 10:03:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 686a597bfff13f666ecc4cc37914bcd5 SHA-1: e2448bc10835c585cd229131bc072aed80740fe6 SHA-256: 2b1e1ae0956a43aaae708fa9de43015ae9cb46f905258bafd34d8e6f242937fb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free robux' to entice users. The primary lure URL is http://netcdn.co/app/431946152/comment-avoir-des-pices-dans-roblox-avec-cheat-engine-game-hack, which is flagged as malicious infrastructure. While no scripts were explicitly extracted, the nature of the PDF and its embedded links suggest a potential for JavaScript execution or further payload delivery upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.co/app/431946152/comment-avoir-des-pices-dans-roblox-avec-cheat-engine-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/5-easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-robux-on-roblox-using-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-free-spins-no-survey_GM406889139.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_off00002af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF3 22592 bytes
SHA-256: a6b9418abd3705f7b09b395c3b23e8d4e9fbe5cf6d4d9217a30a8800084c6cff
font_01_sfnt_off00005d0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0F 19572 bytes
SHA-256: d47902fd4d87d2429f7030d6229c4ec498cec48a114ac7caede3b38684699616

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