Malicious PDF — malware analysis report

Static analysis result for SHA-256 6384594a6ba4b111…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 12:54:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e0e5e3c8ac1dc79b4d035d9c3cb26e18 SHA-1: 805db417194a3c28f8826ae81d27f8f88c210bb7 SHA-256: 6384594a6ba4b111f383e1e3cdc04573fc267ba88aaae07697370fb15e8cdab7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and references to game hacks and free in-game currency, such as 'Roblox Com Free Robux'. The primary link, http://netcdn.tw/app/431946152/roblox-com-free-robux-game-hack, is flagged as a high-severity lure for game hacks. This suggests the document's purpose is to trick users into visiting a malicious site, likely for malware distribution or phishing.

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/431946152/roblox-com-free-robux-game-hack PDF link annotation
    • http://lib.unar.ac.id//repository/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/daily-spin_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/chemise-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-hack-apk-link_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_off000030ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BA 22040 bytes
SHA-256: 43df938c7fc9563c2ae755e6744b7b74b4c812da1b66b3ba6d4b08a45e204655
font_01_sfnt_off00006133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6133 19052 bytes
SHA-256: c7437b3e7bd48948350c0c34152667cbccbfce8be2367ca38aabcff84c85cc8a

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