Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee6b337f6ebefbfe…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 02:28:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1bd84cacda0960393f2fb18f9c05549a SHA-1: edd876eff638f6ae8ae8e2242c164032eb339116 SHA-256: ee6b337f6ebefbfe6da83552319b5e4f5b1efb3cc3334152be1aac352ff5716a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to a redirector URL associated with game hacks and free generators, indicating a lure to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure theme strongly suggest a phishing or malware distribution attempt.

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/479516143/toolbox-mod-game-hack In PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/robux-generator_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/give-me-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • https://freegiftcodes.euIn 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
font_00_sfnt_off00004a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A97 24880 bytes
SHA-256: 99c62dd4f9dc9a66735200eaa4ee01987feda307aae270122eed523503d86531
font_01_sfnt_off000082f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F9 2880 bytes
SHA-256: 8e94a3e6d0b915631333312aaa51ae05a0eeba0704f4e9e40d86aec9d096645c
font_02_sfnt_off00008cec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CEC 17872 bytes
SHA-256: ad6b4d8381eadec3c93ad1df5f4e1279c2235c5ac1e30c542200a475642cf7e3

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