Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a9a8dd251a1c0c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 21:50:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edfd5f6f515ce664a942ea591cc7d4d5 SHA-1: 13e4f1f69586aa042e52f84d1cfd9f42f6d598c6 SHA-256: e4a9a8dd251a1c0c428e8fe20f93b85f251f5a8efd9aaad95809a87c594f6eb8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector, masquerading as a 'free Robux generator' or 'game hack'. The document body and heuristics confirm the lure is related to popular games and free in-game currency. While no scripts were explicitly extracted, the nature of the links suggests a potential for further malicious activity, such as downloading additional payloads or redirecting to phishing sites.

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/pastebin-free-robux-fast-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/hack-client_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/weird-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/kachifpro_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-hack-codes_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_off00002dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAC 22612 bytes
SHA-256: f44c19621e3c6ce53efd498144f0d3da05aafe7aa4d13ab55b677805d9b49705
font_01_sfnt_off0000601e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601E 19092 bytes
SHA-256: e45ed481196702c7b9b560806f9d09be662b966551c759b24b99db5ead4e06bb

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