Malicious PDF — malware analysis report

Static analysis result for SHA-256 328cbcececdc5072…

MALICIOUS

PDF

34.2 KB Created: 2021-06-28 22:05:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0ed3493c556b1a289f30c7fd0950256b SHA-1: aca769577db4aee46c19eb057afa795b0659a7b3 SHA-256: 328cbcececdc5072c28140b56d13b62a98e4f551794cbeb9a8835f21ab736159
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to 'netcdn.co', which is flagged as a malicious redirector. The document body and heuristics indicate a lure for game hacks, specifically targeting Roblox users. The primary attack pattern involves redirecting users to potentially malicious websites that may host further malware or phishing content.

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-t-hack-roblox-game-hack In PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-mobile-hack-ios_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/free-tiktok-followers-no-human-verification-2021_GM835599320.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/free-roblox-song-id_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-the-pizzeria-fnaf-2021-money-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/free-items-with-inspect-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/soros-roblox-hacks-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/cheats-roblox-highschool_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/change-your-roblox-name-for-free-reddit_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/be-a-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/hack-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/how-to-get-robux-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/how-to-hack-roblox-mac-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/roblox-local-fly-script-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fkm.unand.ac.id/repository/fill-in-form-for-free-robux_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_off00002e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E32 22792 bytes
SHA-256: 7c569b0cacb7948c28a2c993c01bc34246845e735663a9b0f721b5f8eadd0b04
font_01_sfnt_off00006130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 18820 bytes
SHA-256: bc289db47467c627b75bad478044969f7c78c51a6f1934d82e9e517bf2978efd

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