Malicious PDF — malware analysis report

Static analysis result for SHA-256 beac28b518208fbe…

MALICIOUS

PDF

41.6 KB Created: 2021-05-14 22:58:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 258a03d928bec2f11e661bb54956ee7a SHA-1: c9749410fd7cd1faef90cf466c1e43fa3365b5a0 SHA-256: beac28b518208fbe08f00ce8c3732cdcba152af39b5bd7667a079541256a7536
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, with a primary URL pointing to a "game hack" lure. This suggests the document is designed to trick users into visiting a malicious site, likely for credential harvesting or to download further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs 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 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 https://netcdn.xyz/app/406889139/coin-master-coin-link-game-hack PDF link annotation
    • http://www.primeinformatica.it/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.primeinformatica.it/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://www.primeinformatica.it/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.primeinformatica.it/images/free-robux-no-survey-or-human-verification_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_off0000479a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x479A 25560 bytes
SHA-256: 8fe8bc34e4c35580504c181d50a2680243cd62fa22f79d9377e856e9bf4bfb8f
font_01_sfnt_off000081b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B4 17716 bytes
SHA-256: 6b6be525affa70ffc107ac4c88dd9d04ef97920621a7989faf1a85e6391895c0

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