Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2853cb7dac7a04…

MALICIOUS

PDF

34.0 KB Created: 2021-06-21 00:16:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 90a30396353ff12587c68340cf666469 SHA-1: d4af50e3400794f588942a202cf25e9bb97e823c SHA-256: 7a2853cb7dac7a0490c6a642d15591307d6530a2d1b222dab813eb4f58c927af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-on-roblox-com-game-hack, is associated with a game hack theme, indicating a likely attempt to trick users into downloading malware or visiting phishing sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious redirector chain.

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/how-to-get-free-robux-on-roblox-com-game-hack In PDF document text
    • http://bressanassessoria.com.br/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-hack-other-people-roblox-account_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/hack-in-roblox-jailbreak-noclip_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox-assassin-hack-download_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/strucid-battle-royale-roblox-hack_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/fun-games-to-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/rocash-earn-robux-free_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/download-roblox-for-free-on-android_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-mad-games-roblox_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/easy-robux-cheat_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E01 22092 bytes
SHA-256: 6abbd5beb2a21983d056eb4316ce9077441cab0afef61e60792e5b8f96ca5a26
font_01_sfnt_off00005ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED0 19320 bytes
SHA-256: 84dc3ffa2efd35f2606f3f8e0582aa8519d4071d67249a11ced3ffabd57a3825

Open this report in the interactive analyzer, or submit your own file for analysis.