Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea871f6817f6f9d…

MALICIOUS

PDF

44.6 KB Created: 2021-05-16 05:09:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7760478b4d134c49d254f172134220ec SHA-1: 78b2b10dabd5a97fa29011ca2f391c47865eac18 SHA-256: eea871f6817f6f9dd0bb5057d9ff45f565e2a6a8f640196d65e21b12303e84b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The presence of a visual download button lure and the ML classifier flagging further support its malicious nature. The document body and embedded URLs indicate a social engineering attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/descargar-coin-master-hack-game-hack In PDF document text
    • http://modlingua.com/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/wurst-mc_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-without-any-verification_GM431946152.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_off00004878.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4878 24820 bytes
SHA-256: 7fed4eacfb89ce250cf22abfa6d523cfdf3dea7b388956c473c5ee4e61b901dc
font_01_sfnt_off000080ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EA 3204 bytes
SHA-256: 8c2546387700f45186c395d475006178ee984eabbc175bcf1ee6eb58ba8b57aa
font_02_sfnt_off00008bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BEE 18172 bytes
SHA-256: c3867332f4dfccc328b78f313c3490d7baeec2f340b73ce4d0aaf0744ae5e9be

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