Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05815f9d4d69bab…

MALICIOUS

PDF

33.8 KB Created: 2021-06-18 04:54:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c7cd84bea329d3b68fe50f662233098e SHA-1: bf96282ce13d069ebb3c82dac56ddbd1de193191 SHA-256: b05815f9d4d69bab8f1a5e121ce9b3bf341d0dc2f174869505bebaef1d8c4ca4
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that are disguised as links to game hacks and generators for popular games like Roblox and Coin Master. These links, such as 'http://netcdn.co/app/431946152/noclip-sin-hacks-roblox-game-hack', are designed to trick users into visiting malicious websites. The presence of a 'free generator / game hack' lure and the high ML classifier score strongly indicate a malicious intent to redirect users to potentially harmful content.

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/noclip-sin-hacks-roblox-game-hack PDF link annotation
    • http://io24.com.ar/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/get-free-robux-denis_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-roblox-download-for-wimndows-10_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-jailbreak-noclip-hack-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-account-that-have-robux-that-are-100-real_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-robux-without-taking-a-survey_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-hack-ghost_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/como-hackear-todo-os-vehiculos-en-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/red-boy-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/get-me-free-robux_GM431946152.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_off00002e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E15 22308 bytes
SHA-256: 99b08c565ddae386ce053d842a3ac1b47e7bcc3691149061bf555085b06be7bf
font_01_sfnt_off00005fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 18764 bytes
SHA-256: 10783293a9527a488e4fe7677cecb08648aed1f02b58f00b6170ae0105e76b6b

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