Malicious PDF — malware analysis report

Static analysis result for SHA-256 503bada38fe7873a…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 04:04:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dc94714d3d3bab645f2581fbfe235ca8 SHA-1: 103828ebe1c872f8f675a6aa9537777c697a969e SHA-256: 503bada38fe7873abe44f17b224d29e658b9eed19c637c883575824e7d54d6a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and sites offering 'free generators' or 'hacks' for popular games. The document body explicitly mentions 'Free Minecraft Alts' and includes a URL pointing to a 'free-minecraft-alts-game-hack' page. This indicates a social engineering lure designed to trick users into visiting potentially malicious websites, likely for phishing or malware distribution.

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/free-minecraft-alts-game-hack In PDF document text
    • http://viemeo.fr/images/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-spins--coins-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
font_00_sfnt_off00004964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4964 25644 bytes
SHA-256: d6aeb5a9193036e551008d0691ee05bbb9805478ee932ba980cce20f0aac8b05
font_01_sfnt_off00008335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8335 17644 bytes
SHA-256: 4350bb70586d7d356c834f80239bf16b03274066df9e9143be1036ee17eff588

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