Malicious PDF — malware analysis report

Static analysis result for SHA-256 78e08289e037b45d…

MALICIOUS

PDF

34.6 KB Created: 2021-06-21 06:26:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64367456850ea137eb383e6da7343eea SHA-1: c90cf36efd82540a3faec232288b2695b93730e3 SHA-256: 78e08289e037b45dfa2ac08560eb22c29e9f97929c35c30bc85e5baea62649f6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link redirects to known malicious infrastructure, indicating a phishing or malware distribution attempt. While no scripts were extracted, the document's structure and embedded URLs strongly suggest it's part of a phishing campaign designed to lead users to potentially harmful content or downloads.

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/roblox-speed-hack-2021-june-game-hack In PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-website_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/robux-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/roblox-free-script-for-part_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/dailyrobux_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/minecraft-svg-free_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_off00002f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F85 21932 bytes
SHA-256: c413c7f6488e2939abcefd078e0a4089bfe825524c576123a7155afeff32617e
font_01_sfnt_off0000601b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601B 19712 bytes
SHA-256: 7fb343eb23dff6233e78e446dda0b59d7c46daec110e51060f122faaa9997528

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