Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a11830b4e6c518e…

MALICIOUS

PDF

38.7 KB Created: 2021-05-20 13:32:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bd47752260eedafb92830d603eb4b50 SHA-1: e1c15f1bb090bbed40bc1a2390e06a7df76beb0c SHA-256: 2a11830b4e6c518e8973d883d6abc7d316b206bc642741efb760a30dd534cdf5
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a call-to-action phrase, indicating an attempt to redirect the user to malicious websites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that one of the URLs points to known malicious infrastructure. The ML classifier also flagged the document as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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 https://netcdn.xyz/app/431946152/robuxlove-.net-free-robux-game-hack In PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/websites-that-give-free-robux_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_off00003580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3580 28764 bytes
SHA-256: a582a5feb2015c3e560a8a0c718d97aff23258a00b4d4aff7a435be89d367c2b
font_01_sfnt_off000075d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D1 18372 bytes
SHA-256: 65db4e182113fd1a8aa6d8046ef53f92d54fa7b6a505b130f920b75136a01eb1