Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e5821473dea270…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 00:13:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 28fa073fb1d1bb3a44bf63d00c861171 SHA-1: 54736cd8b45365a87c4a128941868b1e77f0740b SHA-256: a0e5821473dea270796a43d9b56b2b310be32c4f3c311b3712cacd4ba23fde14
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/406889139/get-free-spins-for-coin-master-game-hack PDF link annotation
    • http://global-brand.net/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-roblox-custom-templates_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/weird-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/hacking-sites-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/hacking-poeple-in-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-restaurant-tycoon-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/robux-money_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-promo-codes-robux-free-202100_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spin-link_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-link-today-new-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_off00002e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E69 22584 bytes
SHA-256: 28d16db1783715e872abfbd5263f7eee57f75e1d547590f89be06f91f4c331af
font_01_sfnt_off000060e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E4 18176 bytes
SHA-256: 76bfdde0d1dbaff2503b84320f04347c0e27e5afe98e240136eaf8f884d81ceb

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