Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe4fb65289a5b98…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 17:59:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f4942848fd1268cc932bb8774e44b03 SHA-1: d750b8f02f18f075fe9df307460c785010382b8b SHA-256: 5fe4fb65289a5b98203492fa732a0c148b11dc3c71daee2002cf554ab7472d0f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary URL, http://netcdn.co/app/431946152/how-to-get-a-hacked-roblox-account-game-hack, is identified as a malicious redirector. The document's content and embedded links strongly suggest a social engineering tactic to drive users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-a-hacked-roblox-account-game-hack In PDF document text
    • http://perpus.masda.ac.id/repository/roblox-jaiilbreak-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-roblox-game-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-robux-adds_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-codes-that-r-rel_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/claim-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/what-is-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-cheats-codes-card_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/is-minecraft-free-on-mac_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_off00002ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA2 22860 bytes
SHA-256: 940023259d03f142a6745e9acade5a8adee07eb331dbb2484451796736459678
font_01_sfnt_off0000619b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619B 19240 bytes
SHA-256: 028f6c50100dad75b3cf3922162267447aafa27213088b266942e7d67925dffb

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