Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b1762846907c07…

MALICIOUS

PDF

41.3 KB Created: 2021-05-15 16:38:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3ec2c3ce85a07b3be7e53fed88cbbd68 SHA-1: 778db120e2b77ba95c5471e16d148a194b22e090 SHA-256: 29b1762846907c07afedc612604f07c98c4a4d847020dae27b3ad09b707128c3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that are designed to lure users into clicking on them by promising game hacks and free currency. The primary link, https://netcdn.xyz/app/406889139/coin-master-twitter-free-spins-game-hack, is flagged as a high-severity lure. The document's structure and the nature of the links suggest it is part of a phishing or scam campaign, likely intended to redirect users to malicious websites or initiate further downloads. No scripts were extracted, but the PDF's nature and embedded links strongly indicate a malicious intent.

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-twitter-free-spins-game-hack PDF link annotation
    • http://medinup.pt/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://medinup.pt/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/hack-a-game_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/roblox-hack-ga_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
font_00_sfnt_off000047ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47EF 24668 bytes
SHA-256: 815e3cb348fffce75be8acb7db3d41698bce70bfed9b8c5053594d820371ac7c
font_01_sfnt_off00007f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F80 18052 bytes
SHA-256: d5c713e21d1796f9829cfc955fe60add37e43b6f073cef82b9d1bf41a9ab85b5

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