Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3af8502fa02a108…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 07:49:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bfc06405211f80a023c64784c94284b8 SHA-1: 1b65ecbc07d6cfda49329f927c2e718cc419768f SHA-256: d3af8502fa02a108ce82872a57a3cd82fafb6050722c4e4d90c26ed2302e8ce0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that lead to a known malicious redirector, disguised as a lure for game hacks and free currency. The document body and heuristics indicate a phishing attempt to trick users into visiting the malicious URL, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a malicious intent.

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/free-gift-code-roblox-game-hack In PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-create-clan-in-roblox-for-free-account_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-roblox-com-mobile4free24_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-make-dance-party-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/roblox-cash-grab-simulator-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-no-anything_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/aimbot-hack-roblox-rb-world-2_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-printable-roblox-coloring-sheets_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-counter-for-roblox-apk_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-get-build-tools-on-roblox-cheating-2021_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_off00003475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3475 21932 bytes
SHA-256: 009beaf9f91222393e955c5a0dc949e5342b404644eb6fec59908033d8b66632
font_01_sfnt_off000064a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A7 19048 bytes
SHA-256: 29ef11995cb8887e54f5be43a6cb0319f99c6f29ad0672d97c3c1a22c0bd6a66

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