Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6751c1510772fea…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 08:26:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ad86473b4b70ae0e6a1b3553c9a7783c SHA-1: 51e93b858570e71f8102255bcf2ddc918cdc71d1 SHA-256: f6751c1510772fea0f4057f6fd8e0f2118c6e1679c7c6b7aefd1d9c952b720c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing free game currency and hacks for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/play-roblox-online-for-free-no-download-game-hack, is flagged as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt, likely using JavaScript for redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/play-roblox-online-for-free-no-download-game-hack PDF link annotation
    • http://www.access-coiffure-tours.fr/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/visenya-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-free-download_GM479516143.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_off00002ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC9 21188 bytes
SHA-256: ffa01e029c796265aa8373e252466a969a14d93d6a52086e656cb8845f63c595
font_01_sfnt_off00005cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF0 19424 bytes
SHA-256: bdfbf7bf59f75e89c924c18017acabed424ece7a178edfa9fa58fe68ee2304e3

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