Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ea8009278f8ee0e…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 13:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d32c2df59d88eb9ca2f4b80fa1977967 SHA-1: 2dcb17e19ea9971b810c9b70aebf91b2e92d8b1d SHA-256: 6ea8009278f8ee0e3779fce49fa7e314ecd05a531a4f352b8f0742b099f89833
160 Risk Score

Malware Insights

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

This PDF file contains multiple links to malicious redirectors and other PDF lures, all masquerading as 'free generators' or 'game hacks' for popular games like Coin Master and Roblox. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-app-game-hack. The document body and embedded links suggest a phishing or scam attempt to lure users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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 https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-app-game-hack In PDF document text
    • http://centuriatus.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/free-robux-generator-no-human-verification-or-surveys_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
stream_002_off00003609.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3609 24544 bytes
SHA-256: 4fdc531a7681ddda5d1588d882ef197bd2d8c5756f81637ea91ee4d3118e2e26
font_01_sfnt_off00006e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E80 18060 bytes
SHA-256: f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb

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