Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce402a5c358667f…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 06:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c19a989e7fb31362235247b38cef00f SHA-1: 2ea407379dd1ce03359af2f680ffbe6fde3edbed SHA-256: 0ce402a5c358667f148d45c183172e8e75c0579d8c694d9a02a41ea2a2587058
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free in-game currency (Robux) for Roblox, directing users to a malicious redirector URL. The document contains multiple links to potentially malicious or misleading content, including a primary redirector at http://netcdn.co/app/431946152/roblox-free-robux-no-human-verification-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt, likely intended to lead users to credential harvesting or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-free-robux-no-human-verification-2021-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblux-for-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-page_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-robux-stealer-hack_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-mobile-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-hack-2021_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_off0000322b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322B 21712 bytes
SHA-256: e5ce87bbdb96c43e53b7ccbaa194b2e4ab413788662319107802fe7442f4f5c0
font_01_sfnt_off00006229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6229 19812 bytes
SHA-256: f5d21ef02f665f308a0cf3600fbbcbd95dbe799df661867f97c403c9d97a05fe

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