Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fdc4770c43f0550…

MALICIOUS

PDF

42.9 KB Created: 2021-05-14 21:55:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c86442117007ffdc50fdc7a303f3032 SHA-1: a8a02f0332a7ef6a80b88d5d53a1ece51c47ad50 SHA-256: 0fdc4770c43f0550d9d8405578552345a7679189ac907db6769a6ae0963cf91f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as generators for game hacks and free currency. The primary lure URL is https://netcdn.xyz/app/406889139/blogger-free-spins-and-coins-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or social engineering attack, likely intended to lead the user to a malicious site that may download further malware or steal credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/blogger-free-spins-and-coins-game-hack In PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ce5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE5 24708 bytes
SHA-256: 0cb5dbcecf88bb0fd809bb85b1d70ee77e66340d3f227ecb173404d71bd6272e
font_01_sfnt_off000085a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A8 18304 bytes
SHA-256: 6e101829674d2a0991648ef9ebab65d62fb09ad10f4ed7016658149130c5c924

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