Malicious PDF — malware analysis report

Static analysis result for SHA-256 948f96c5d46c079b…

MALICIOUS

PDF

42.6 KB Created: 2021-05-13 00:34:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a34e2faa0993a67e01b155606ef6c398 SHA-1: 02d8f317d2e1cbf1e2fadccaac73416573bd6f95 SHA-256: 948f96c5d46c079bcf64b9784c0bd7d401b86df89bf7775b13dd95832944bde2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free Robux". The primary malicious URL identified is https://netcdn.xyz/app/431946152/get-robux-now-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering lure designed to lead users to potentially harmful content or further malicious downloads, aligning with a spearphishing attachment tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/get-robux-now-game-hack In PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-spin-and-coin_GM406889139.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_off00004aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAC 25348 bytes
SHA-256: 240c34ecd0ce5af3fd58bacecbd6457fac6133696b31bb555d68c115e8731d10
font_01_sfnt_off00008492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8492 18120 bytes
SHA-256: 9c3ce8d7b0d85fdff3917ffd210604c934acd68a905ece7635225fd3f48c16bc

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