Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2c542bdedc9c02…

MALICIOUS

PDF

32.5 KB Created: 2021-06-20 00:28:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f5a7dcb4da64ee34836fddbe107f6745 SHA-1: 06ddcedf28d61315daecf1cff37f3751e91744b7 SHA-256: fb2c542bdedc9c02bde74e4d762135eee73908e034acaa0071ff9970e2097bc4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body text and heuristics indicate a social engineering tactic to trick users into clicking these links. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a potential for further malicious activity, such as downloading additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/vip-server-free-roblox-game-hack In PDF document text
    • https://library.iuli.ac.id/repository/hack-for-robux-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-admin-panel-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/hack-with-script-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/gamekit-800-robux-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-a-roblox-account-2021_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_off00002a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A19 21676 bytes
SHA-256: 4cd91e638f3361fb62e67fd17f0dfee5cab2cadc838c609440b75a961b371ece
font_01_sfnt_off000059cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59CB 19196 bytes
SHA-256: cc97a5172088db9c3dff440d61ac97e70eac6cbf172441ccf90f27aac5760dab

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