Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d3f9dafdb3386fe…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 09:40:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3d1b4490a3db688cba51d399116a661f SHA-1: c61ba74114562ffc1005552c56a95eef2ae5d22e SHA-256: 9d3f9dafdb3386fecb89294f9d9e5e6888f98a60a3b8190d2feb4ca3fdf8b83a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to game hacks and free currency, specifically targeting Roblox and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the embedded URLs strongly suggest a social engineering tactic to redirect users to potentially malicious sites. No scripts were extracted, but the document's structure and content indicate a phishing or scam attempt.

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.co/app/431946152/best-free-games-on-roblox-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/how-to-hack-in-a-hacked-account-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-change-values-without-using-cheat-engine-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-lua-programming-book-pdf-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-best-robux-app_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-no-hack-april-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/linkmon99-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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_off000031aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AA 22836 bytes
SHA-256: 3a5ed8ea8bb46778727dd1b069c68f7892b4f48e806f9a6d4fca01828eb8b03e
font_01_sfnt_off00006501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6501 19016 bytes
SHA-256: ffd3771c5bea0fd43101f62d63d9fd484aa9be30224bf21b8901fcfa36b0de1f

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