Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6ff6f9a8d53ba31…

MALICIOUS

PDF

35.5 KB Created: 2021-06-29 01:03:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2c495e79aaec6eeb1955a130057df9d7 SHA-1: e641f78151ada82cfedaaa26d4fa973a6d7f8a63 SHA-256: c6ff6f9a8d53ba31bac92a98be7d01cd776b613911c9c2c0dd1f712f8a0ed087
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to external URLs. The ML classifier strongly indicates maliciousness, and the embedded URLs are associated with such deceptive content. While no scripts were extracted, the PDF's structure and content strongly suggest it's designed to redirect users to potentially malicious sites for further exploitation.

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/free-robux-generator-no-survey-or-human-verification-2021-pc-game-hack PDF link annotation
    • http://www.otomasi.uinjambi.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-hack-a-megavore-in-dino-sim-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-ban-or-kick-in-servers-roblox-hack-scrip_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/roblox-flood-escape-2-hacks_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/tiktok-free-play_GM835599320.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-800-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/robuxlove-net-free-robux_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
font_00_sfnt_off000030db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DB 22404 bytes
SHA-256: 84537b61f842389cccacefbf4ca7356bdde82115cce986c9405ff600513a85b2
font_01_sfnt_off0000628d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 20184 bytes
SHA-256: a0f7dd75d813099a24c663e7be49b15ac8a327cd8dc3bb66bac59bc37a6de132

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