Malicious PDF — malware analysis report

Static analysis result for SHA-256 24f34c1d1c0d1739…

MALICIOUS

PDF

46.3 KB Created: 2021-06-10 12:18:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8b4d9c6b1ddddd9c84959f7270efe09c SHA-1: 09cb96a7780d82b17e1a7206c7f3b40b704331d1 SHA-256: 24f34c1d1c0d173995c9da1640b23daad528019490e5d6e72e00b8d095e67d38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'Free Robux' and 'game hacks' to entice users into clicking embedded links. The primary link, 'https://netcdn.tw/app/431946152/free-robux-legit-no-survey-game-hack', is identified as a malicious redirector, indicating a phishing or scam attempt. The document's structure and embedded links suggest an attempt to direct users to potentially malicious websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.tw/app/431946152/free-robux-legit-no-survey-game-hack In PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-hack-2021-admin-commands_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/descargar-roblox-hackeado-para-android-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-hack-roblox-mobile-with-ifile_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-synapse-free-download-2021-feb_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/hack-para-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-gift-card-codes-for-free-2021_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_off00005356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5356 26416 bytes
SHA-256: bcb967bb62abbc6519a4e5f48969b26931b70993cd744c3b7cac70fa8c6555a9
font_01_sfnt_off0000909c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909C 18820 bytes
SHA-256: b48524204736fe6e3e45def62798705a0769356dd56c20eb8542ca1eb232695b

Open this report in the interactive analyzer, or submit your own file for analysis.