Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1ff8cf2512c58d…

MALICIOUS

PDF

33.5 KB Created: 2021-06-29 17:52:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb5287b40fce483466ff571011dea540 SHA-1: 127b3ca654bd557e582282dccfc04afdc43579a5 SHA-256: ee1ff8cf2512c58d09c3b3c445ef9ccfd597ee604f1791136c2c9ea7dc39e2c6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, designed to lure users into clicking on offers for free game currency or hacks. The document body explicitly contains the URL http://netcdn.co/app/406889139/free-spins-on-coin-master-game-hack, which is flagged as a lure for game hacks and a malicious redirector. This suggests the primary goal is to redirect users to potentially malicious websites, likely for phishing or malware distribution.

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/406889139/free-spins-on-coin-master-game-hack In PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-hack-robux-gratis_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-hacked-twitter_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/circuit-breaker-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-sans-verification-humaine_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/eas-robux-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/codigo-hack-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-shirt-template-free-to-use_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-clothes-temp_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/generator-get-free-robux-denisdaily_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-hack-any-roblox-game_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-ad-website_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-its-free-music-id_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-dll-hack-scripts_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-hack-generator-com_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_off00002e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5D 22456 bytes
SHA-256: 9fac1121acc01b5ba2e7df57c447c196579ed3b25309b07ebf0004055f2974ba
font_01_sfnt_off0000607a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607A 18176 bytes
SHA-256: 1d97d559b00188de25375047baff616ad70156a7868f4dca1def947dc1a2c5ee

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