Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2c7272232ddddc…

MALICIOUS

PDF

33.0 KB Created: 2021-07-03 12:17:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 740ebb6c4ba861224e2072b3fb3a49d9 SHA-1: d3094c367f1bb49e0de8a55a1786e1fce6210217 SHA-256: af2c7272232ddddcaf0202e0afc4a9276da108ceff994bfd5649cec865fef4bc
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/robux-without-verification-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/how-to-make-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-roblox-cards_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cheat-speed-city-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-places-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-badges-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-hack-a-roblox-account-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_off00002a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0C 22288 bytes
SHA-256: 79cd45baa35535788095f0197d5106c7e2a541bf5e45ff086a8038cb0188c9ae
font_01_sfnt_off00005b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B86 19276 bytes
SHA-256: 4a2d2f668e89c70dfb6e16bd6998a43472677e1b3c1a09af93738297e9a51636