Malicious PDF — malware analysis report

Static analysis result for SHA-256 343675f98b034774…

MALICIOUS

PDF

48.6 KB Created: 2021-06-03 11:04:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fb49c94efee56c71ae681b0473f473d3 SHA-1: 934fff1d2c8d977caf22095acf896cb0589e9c62 SHA-256: 343675f98b034774f8e47a1df455cccdeadd1b7108d90df7250af365094a621f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF repositories. The primary URL, https://netcdn.online/app/431946152/free-robux-no-verification-2021-ios-game-hack, suggests a lure for downloading applications related to game hacks or cheats. The presence of a "download button" heuristic further supports the malicious intent of directing users to external resources. No scripts were extracted, but the document's structure and embedded URLs indicate a phishing or social engineering attempt to trick users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/431946152/free-robux-no-verification-2021-ios-game-hack PDF link annotation
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/lua-roblox-hack-scripts_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/tiktok-free-search_GM835599320.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000513f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513F 27400 bytes
SHA-256: 85a182ef200a1b75afb2a9da67bdc1207c6bf132e6b148deb1e1a51e9e91517a
font_01_sfnt_off00008f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F49 2828 bytes
SHA-256: a4e15770ab3b920ccbab17816ac2be280610f3f789d7654b00721cdcc5d65b79
font_02_sfnt_off000098fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98FE 19004 bytes
SHA-256: 57c461ba4099b7c3a729e07f809cac2bd0540fe115d61d2f21d5ca70446f19e8

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