Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09bdeeb3df11a5e…

MALICIOUS

PDF

44.9 KB Created: 2021-06-04 02:40:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c50db63950974b06eecd350f16a6ff1 SHA-1: a177e7a2b7d53c53b6abce2798152b045cefdc79 SHA-256: e09bdeeb3df11a5ec34870a5191dc842798bdad2f7787fa1438aca07ca72ae36
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' for games like Robux and Minecraft. The primary malicious URL identified is https://netcdn.online/app/431946152/robuxmatchcon-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/robuxmatchcon-game-hack In PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/pokemon-go-free-ultra-box_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-gold-cards-hack-2021_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
stream_004_off00004fa8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FA8 25896 bytes
SHA-256: e3c784a48551815cc5d04f6c0c4765510a642ee3592963185863eaa28b99c900
font_01_sfnt_off00008c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C22 18608 bytes
SHA-256: 1772f30b32917b5488ab36612215aea49128e39afdb0bc668ac2eaf3111ec9c9

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