Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a4c7662157d5f76…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 19:35:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8816414a698368cc7baa808ed5484d8d SHA-1: 612a8859357278cbc311f3b066abe96b57df056f SHA-256: 8a4c7662157d5f76089894135eacdd54547af14cb1d0df3495a13be38e07c498
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-java-edition-free-download-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a lure for potentially harmful content, likely leading to further malware downloads or phishing attempts.

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/479516143/minecraft-java-edition-free-download-game-hack In PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-robux_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/114-hacks_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.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_off00004a89.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A89 24832 bytes
SHA-256: 88173ad761348d0d857ab9a1dcf91139f4da1ae7908e8eef5d9dd5cb4618db9a
font_01_sfnt_off0000834f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834F 18572 bytes
SHA-256: be0be2e0bd1478f571662982334261f36152068b9a395b749ff064ff651796b1

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