Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3bb097bc48f2bf…

MALICIOUS

PDF

34.8 KB Created: 2021-06-30 19:20:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: da1891fce842a21e2f22ec4b5859aa27 SHA-1: 310142862e2efe977abfaaca5d1ec3b29595511c SHA-256: 1e3bb097bc48f2bf4efbd07f72fcc1ecc245a8842166994ba1b5d54c67f371e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors and other PDFs, masquerading as game hacks and cheats. The primary lure is for 'Roblox Cheat Codes For Robux And Tix 2021', directing users to http://netcdn.co/app/431946152/roblox-cheat-codes-for-robux-and-tix-2021-game-hack. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malware downloads or phishing attempts.

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-cheat-codes-for-robux-and-tix-2021-game-hack In PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/commande-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/free-glasses-for-roblox_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/roblox-injector-free-download_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/get-1-million-robux-free_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/goblin-v1-hack-roblox_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/tiktok-free-fire_GM835599320.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/roblox-builders-club-free-2021_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/free-roblox-card-codes-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://goianiamoveis.com.br/ckfinder/userfiles/files/minecraft-games-to-play-for-free_GM479516143.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_off00003080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3080 21812 bytes
SHA-256: 52383dd39703a15237f7d271b28d29ab1d69a1bb66d8e48babfaf73b81de1bb4
font_01_sfnt_off000060aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AA 19756 bytes
SHA-256: d45fcd50e0d805ec640144aac2a725818bd24ad6c4766e6b1ac6691ab1870bf8

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