Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c35cf3896928a2…

MALICIOUS

PDF

43.0 KB Created: 2021-05-11 04:10:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 40f01d047db28be7bbed82caa7f94481 SHA-1: a1397e0087475bb7b1299861c7d662d6de848aa6 SHA-256: 07c35cf3896928a209ca0a4221e14b18eda6f3e3c9df65b3c4d67d662415fae2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure, specifically pointing to the URL https://netcdn.xyz/app/479516143/minecraft-jar-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering attempt to trick users into downloading potentially malicious content. The presence of numerous similar URLs further supports this phishing-like lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-jar-free-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-account-hacker-tool_GM431946152.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
stream_003_off00004e10.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E10 25268 bytes
SHA-256: 2a98b48fcff137afd3494caff32f8d4610f819ebf39e03d75b3dcea1fc1b827e
font_01_sfnt_off000087ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BA 17736 bytes
SHA-256: 79a8d26c7b4d0bdcab91bfdb774fad33c03b2ac78af62cbe496150d9ab38cc45

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