Malicious PDF — malware analysis report

Static analysis result for SHA-256 4326ddeb28a9797d…

MALICIOUS

PDF

33.8 KB Created: 2021-07-02 05:43:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f5163c0a06f6e705891bb9c304c23c40 SHA-1: 0986ad0bbd9a3ba109fd840e8ade49ff35960686 SHA-256: 4326ddeb28a9797d6ad60873b6e3fbfc9ffb894969695ba2a94c950fc59a20e5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/how-to-cheat-on-eviction-notice-roblox-game-hack. This lure is designed to trick users into believing they are accessing a game hack generator, but it ultimately leads to malicious content. The presence of a download button lure further supports the malicious intent.

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-cheat-on-eviction-notice-roblox-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/codes-for-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-the-sex-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-hack-into-any-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-prison-life-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/tycoon-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-dragon-ball-future-online-script-hack_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/google-moon-active_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/vortex-premium-key-free-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/oprewards-com-login_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roblox-2021-rich-accounts-logins_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-robux-in-1-minute-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/earn-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/globux-me-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/pubg-uc-2021_GM1330123889.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_off00002df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF6 22040 bytes
SHA-256: 21409f13918042950db2ec0d80b4bfeadf5bd633db15dde54e3f602a0e6c5fe4
font_01_sfnt_off00005ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA3 19156 bytes
SHA-256: 5198e1e922d97162bdabb164f5f8042c6f524f429155d235ad2534620841738d

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