Malicious PDF — malware analysis report

Static analysis result for SHA-256 58f96b75e2126aba…

MALICIOUS

PDF

35.3 KB Created: 2021-06-18 10:24:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f5b01d9cc95a9c7ecace67960f4d329 SHA-1: a5dac28f0d92187acd0f3c13cee540881bfb5870 SHA-256: 58f96b75e2126abaf8482914150454e8bafc22c85e6f6247ffb993eac3b97f70
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a document body that explicitly mentions 'Roblox How To Get Robux With Cheat Engine' and links to external sites. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of it being used for malicious purposes, likely to trick users into downloading malware or visiting phishing sites. No scripts were extracted, but the presence of numerous suspicious URLs suggests a downloader or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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-how-to-get-robux-with-cheat-engine-6.3-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-menu-download-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-acount-info-hack-with-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cheats-for-lumber-tycoon-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/25-000-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-jailbreak-hack-download-ios_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-roblox-codes-that-work_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/wurst-commands_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-dominos-code-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hack-apk-35-8_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
font_00_sfnt_off00003058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3058 22468 bytes
SHA-256: 1e0eccea7ad5122d9d9b2914811b67330d77b859971f3f524dddad6819596371
font_01_sfnt_off000062d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 19788 bytes
SHA-256: 041ff704227ab770e0ad60a48d525ca9f39851fef94722fed592af8379c4fb2c

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