Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ca1123153b59e4…

MALICIOUS

PDF

33.5 KB Created: 2021-06-22 23:38:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5c1e99ec577cd6570f088c2f96aacc68 SHA-1: a0e5006af55832d620126c7dedcfe70af129d257 SHA-256: 65ca1123153b59e42f2432cb53483ec3dd266dbe308c92247dda9e202540f51b
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 popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/roblox-free-hat-obby-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a phishing or scam attempt designed to lead users to potentially malicious websites.

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/roblox-free-hat-obby-game-hack PDF link annotation
    • http://hk-kan.org/images/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://hk-kan.org/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/free-robux-generator-no-surveys-password_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/inspect-element-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/1x1x1-in-april-fools-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/song-codes-for-roblox-free_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://hk-kan.org/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E04 21844 bytes
SHA-256: 34ce9ce550473247e4c434f5156ed25695e37e8d6cb8817b00dc8332adf13be8
font_01_sfnt_off00005e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E08 18936 bytes
SHA-256: 1373b0273ac02c27c2e9c527126b45f35eaceebdc2c0abaa4768acafb5bff1f3

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