Malicious PDF — malware analysis report

Static analysis result for SHA-256 26b1479349c1ea3b…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 11:18:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8d026d86a7d954037061722e1c277f8 SHA-1: 20a9d15faa0d3ad450cdd5a370eaae9276df63ad SHA-256: 26b1479349c1ea3bd837235240d05055f705a51de7c652b2b002d4a67a98c783
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game passes and hacks for popular games to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/how-to-get-free-gamepasses-on-roblox-2021-game-hack, are identified as belonging to known malicious redirector infrastructure. The document's content and the presence of multiple suspicious links strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites.

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-free-gamepasses-on-roblox-2021-game-hack In PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/what-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-create-a-free-account_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/hack-to-find-people-ingame-in-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-get-free-robuxs-proof_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-citizen-exploiter-free-robux_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/minecraft-114-4-download-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_off0000311d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311D 22080 bytes
SHA-256: 9c544a9ea3e46664343427fcb32998619f194e00b4edb0dc22a3d27c215b88b3
font_01_sfnt_off000061df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DF 19756 bytes
SHA-256: 2533641def8862f0cb669853f96e0afcdb134c4008834170751f6d22f7ea1726

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