Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9afe236b5344df…

MALICIOUS

PDF

41.8 KB Created: 2021-05-14 23:31:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5234deb77fa0a5083ceff368d5b4e5b0 SHA-1: 6c16510a37727281fdd5692d3b2475bf008bb092 SHA-256: fd9afe236b5344dfe6ae2c96a9fac98c057a25b4b6bf2260ca64ffacd754d96b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to 'netcdn.xyz', which is flagged as a malicious redirector. The document body and heuristics indicate a lure for game hacks or generators, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/roblox-account-taker-game-hack In PDF document text
    • http://adveos.com/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://adveos.com/images/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://adveos.com/images/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://adveos.com/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/add-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_off000045fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45FD 25632 bytes
SHA-256: 300932c4ceb85b167db0930c5c2bbfc7ed126e805564c57cf9932c41d2a24584
font_01_sfnt_off00008069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8069 18428 bytes
SHA-256: a45c208a7567f3e6804dce25d11280ac896a92182563dc04cbc3a4f5e023aa05

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