Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d74b4223c8a8d96…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 21:35:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b3a92257512bf38d850823f448e56850 SHA-1: bcc2e6d7bf03328abd14fe533d3d5ae4dc516e7b SHA-256: 3d74b4223c8a8d9613203d6dc56e220835dced2088f2d97000d3c9a755624cb2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency'. The primary lure appears to be related to Roblox and Coin Master games. The embedded URLs and the document body content strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful 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/roblox-vehicle-simulator-free-money-game-hack In PDF document text
    • http://torkelson.se/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/free-unused-roblox-codes_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/redline-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/piano-keyboard-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://torkelson.se/images/roblox-cheat-download-no-survey_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/roblox-hack-client-april-2021_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://torkelson.se/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002da4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA4 21540 bytes
SHA-256: 65f3cb525b17960d6d50cf9efecf2a3e99ba52b599cb46db255d939a6c3fb6e8
font_01_sfnt_off00005cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB8 19952 bytes
SHA-256: 8b4d2215d1c7d232446fcafaa11eb623e246b42e92612e704dab0e0deb919410

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