Malicious PDF — malware analysis report

Static analysis result for SHA-256 769a3d2e0c46100b…

MALICIOUS

PDF

43.0 KB Created: 2021-05-16 07:44:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9975a7bdaf358311a6644f4f2469febf SHA-1: 5759093bfb07022a454dcf307a04e1c6c37329ab SHA-256: 769a3d2e0c46100b69ff3dc27a90730d2ec3a891f73f57622c3229e06d6e2e5a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and hosts further malicious PDFs, all disguised as generators for free game currency or hacks. The primary lure is 'Microsoft Bing Free Robux', directing users to a malicious URL that likely serves as a gateway to further malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/microsoft-bing-free-robux-game-hack In PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-hack-app_GM406889139.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_off00004993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4993 25908 bytes
SHA-256: 94bd00a0056b6942e22b50365dc0ca914baebaa6f4de96df44a77d3700b23286
font_01_sfnt_off00008439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8439 18720 bytes
SHA-256: f6da71d3ec7876d1f2450260025b1db4712d77c7886386833aafb50cc2347919

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