Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a64be06eb3b6c8b…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 19:51:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ab239c3b0699e7b9990c3a88335d8e66 SHA-1: ab29e8519227ce03bbb005dedcc6016441e404a9 SHA-256: 3a64be06eb3b6c8bd556ccbd201cbde8f1b88a4468d3cb981b6278c2a852fcbc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded text related to game hacks and free items, specifically targeting popular games like Roblox and Minecraft. The primary malicious URL, http://netcdn.co/app/431946152/hack-roblox-para-volar-game-hack, is identified as a redirector likely leading to a malicious payload or phishing site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is a lure for 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/hack-roblox-para-volar-game-hack PDF link annotation
    • https://fud.iain-surakarta.ac.id/pustaka/repository/roblox-how-to-get-free-items_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/hacked-roblox-shirts-that-work_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-become-a-hacker-in-roblox-on-phone_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/roblox-free-items-inspect-element_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/minecraft-free-download-ios_GM479516143.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_off000031db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DB 22200 bytes
SHA-256: 56a8f4494f6669ac6c63eeb4a512a0bfa2d4a1a2145eaacee25b31c93706717b
font_01_sfnt_off00006338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6338 18944 bytes
SHA-256: b6e2623cc946077c26f1f7cc89acda726f792d59f6adfac23905d5a8d489dad1

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