Malicious PDF — malware analysis report

Static analysis result for SHA-256 54e1393f540f4429…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 17:02:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f141ddae9c5129a1ea72674358b189fd SHA-1: b21c40f16388b5f503ba652e8a0797a369f8f40d SHA-256: 54e1393f540f4429a4a02b7a6e2aa22cb3c967439160237c4dbbc5380e776dc1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-synapses-free-trial-game-hack. This pattern suggests a phishing or scam attempt designed to trick users into visiting potentially harmful sites, likely for credential harvesting or malware delivery.

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-synapses-free-trial-game-hack In PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-robux-no-password-needed-and-no-offers_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/infinite-jump-hack-for-roblox-devs_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-invisibility-hack_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-get-100-robux-for-free_GM431946152.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_off00003058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3058 22128 bytes
SHA-256: 0d907f13f553b48191513017853ead797477a9f0dd33141c59f4b04b875dd9f0
font_01_sfnt_off00006115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6115 19124 bytes
SHA-256: b94f49527c0d0ee775e160b87771a648b5c27b1ea28286f5f2ed5d7240143c65

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