Malicious PDF — malware analysis report

Static analysis result for SHA-256 7124e29d989b7898…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 22:06:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b6663653f1a26cb2efa2fad644f9d087 SHA-1: 243b2b9db55d4fdf6f2affb7893782585f34ecab SHA-256: 7124e29d989b78981d2753de4889cdad2e6236037c54c400aa917aeba9d6eda6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for a 'game hack generator' that redirects to malicious infrastructure. The embedded URL, http://netcdn.co/app/431946152/como-descargar-hacks-para-atravesar-paredes-en-roblox-game-hack, is flagged as malicious. The document body and heuristics indicate a social engineering tactic to trick users into visiting a potentially harmful site.

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/como-descargar-hacks-para-atravesar-paredes-en-roblox-game-hack In PDF document text
    • https://yeushuen.com.tw/image/data/files/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-roblox-mad-city_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-studio-download-free-android_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/daily-coin-master_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/cpbildco-robux_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-apocalypse-rising-hack-codes_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/tiktok-free-jazz_GM835599320.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-get-free-bucks-in-adopt-me-roblox-2021_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_off00003053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3053 22536 bytes
SHA-256: 881c588cde162f8a3bb2f4033e80e8e7f67c6379e7c0c13444bb5dfc10c90df1
font_01_sfnt_off000061d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D4 19632 bytes
SHA-256: ada8187f4be430244c3482aa77da380c9d712192f35e3cc929d7091d58fa9b2f

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