Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc69ff4afc35aa26…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 11:12:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 65e5c2f50a5458b18330cd476ee1f305 SHA-1: 6a230caa72014c5fff647fc876e71e13aa2aecce SHA-256: bc69ff4afc35aa26918c322a68d8e07f1194c13d9d654208442d5715d6f68184
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a "game hack" or "free generator". These links redirect to malicious infrastructure, specifically the URL https://netcdn.xyz/app/406889139/coin-master-free-spin-now-game-hack. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/coin-master-free-spin-now-game-hack In PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/robux-gratis_GM431946152.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/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/jailbreak-script_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_off000049b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B9 25668 bytes
SHA-256: 1fe7c490291edf433f72ec862c538d75c69116b77add0c06a5028cc7c2880730
font_01_sfnt_off0000859b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859B 18052 bytes
SHA-256: da185b0203ebc3949652e5967f83aecff7adc1a6faf65a4e6bfade67323ea1ff

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