Malicious PDF — malware analysis report

Static analysis result for SHA-256 74c6f0a03ed98f4a…

MALICIOUS

PDF

36.0 KB Created: 2021-05-23 16:06:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dd857b4819ef30d3ace67e7f0c469ead SHA-1: c0e20a0a43ad457aee49180961def9e5968b0ab0 SHA-256: 74c6f0a03ed98f4a6e0e1b8e3aeba05fdc61bb8c5ae59ba2b7132bce4946b7df
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 0.9492

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/479516143/minecraft-online-free-download-game-hack PDF link annotation
    • http://aimp-market.ru/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3379 24668 bytes
SHA-256: ee24777cc97df5021c02765eadf9fdd839426e21e4fb07146eeee38335130c6f
font_01_sfnt_off00006b60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B60 18292 bytes
SHA-256: a2a63f8c18687518d260bdaa10b8e62a526b9456f69b3d2706eff3b892369b89

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