Malicious PDF — malware analysis report

Static analysis result for SHA-256 171d0d911a4af586…

MALICIOUS

PDF

32.8 KB Created: 2021-07-20 21:47:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c399de73a0a8523b22ac716f0368ace6 SHA-1: 54679aa04f64de5c7bf1a39c1d6cda0bdbfaf656 SHA-256: 171d0d911a4af58674aea9492db3bb8eba0aebb56574ab35db77276c399c9d4c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', designed to trick users into downloading potentially malicious content. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a lure for game-related cheats or hacks. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/how-to-host-a-minecraft-server-for-free-game-hack PDF link annotation
    • http://daksz.hu/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://daksz.hu/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://daksz.hu/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://daksz.hu/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://daksz.hu/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/coin-master-free-spin-and-coin-links_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_off00002eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEB 21856 bytes
SHA-256: 6cccbf4d523c61a71e18fad57751d71f4ce71758bd37fe8eaf8682990616e344
font_01_sfnt_off00005ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF8 17988 bytes
SHA-256: 552c8aaf5f0bf5f0c44469b5bd19d93c548c2f36967da1a6f1157fed71bc8ec1

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