Malicious PDF — malware analysis report

Static analysis result for SHA-256 94989b4e6442f58e…

MALICIOUS

PDF

47.9 KB Created: 2021-05-14 06:21:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 87e9411c82452b89d95216b515f3133e SHA-1: 5274dcd5bdc4e02961e775707517c7575bc01838 SHA-256: 94989b4e6442f58edbe5c316f0befada44b2d11e5c427e1aabee3cdaf9801503
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirector infrastructure, specifically promoting "free generators" and "game hacks" for platforms like Roblox. The primary lure URL is https://netcdn.xyz/app/431946152/robux-match-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristics indicate it's designed to trick users into navigating to these malicious sites, likely as a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/robux-match-game-hack In PDF document text
    • http://oddgraphic.com/images/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://oddgraphic.com/images/wurst-commands_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://oddgraphic.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://oddgraphic.com/images/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://oddgraphic.com/images/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://oddgraphic.com/images/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE4 25632 bytes
SHA-256: f760ce70569acbdd19261ef744c07adce23680c8add563e5944db63f78937a56
font_01_sfnt_off00008667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8667 4008 bytes
SHA-256: 515da38a799acdefd039af3a0dfb6ec4815b572058c9bd492ec5a77cd7658593
font_02_sfnt_off000093f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93F2 19828 bytes
SHA-256: 5a0784b4bfbf9469a31c679eec9203fe042571010d5caca96a437dc2f020f2c0

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