Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87ef828c46bcc68…

MALICIOUS

PDF

78.9 KB Created: 2021-11-05 00:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: ca1efb24f83b6460e7f0ca4cb144fb27 SHA-1: 08038e85283bb678127013499f60b6aa9c17b917 SHA-256: f87ef828c46bcc688735ebfd5df7b7a0fb03ca6c4c0cb607dd20628f8d28bf0b
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://akafgdsgreawy.pretty-match.com/upload/files/fusawipuzubidelaxe.pdf In PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616f249ad7887---dibinazapezi.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/wojamazogevasujujiwu.pdfIn PDF document text
    • https://colakcivi.com/userfiles/file/58964347750.pdfIn PDF document text
    • http://epoxidice.ro/mm/file/babul.pdfIn PDF document text
    • https://clicksnepal.grnca.org/img/files/files/nizili.pdfIn PDF document text
    • https://lrsinc.co/userfiles/file/jovekafo.pdfIn PDF document text
    • http://baloneacessorios.com/_upload/file///fovalaxetef.pdfIn PDF document text
    • http://bajajsports.com/userfiles/file/kazorepowukatimefid.pdfIn PDF document text
    • https://capitalsyndic.com/userfiles/file/disukitupilisulo.pdfIn PDF document text
    • https://babetravelling.com/ckfinder/userfiles2/files/wopemosesiradadefofo.pdfIn PDF document text
    • http://winhazel.com/indigo/ckfinder/userfiles/files/50240752491.pdfIn PDF document text
    • https://askflip.com/uploads/files/93049417096.pdfIn PDF document text
    • https://umiyawoodworks.com/fckdb/userfiles/file/25985777429.pdfIn PDF document text
    • https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/25230129271.pdfIn PDF document text
    • http://biplano.eu/userfiles/files/29864550504.pdfIn PDF document text
    • http://sherwoodchambergolf.com/ckfinder/userfiles/files/73256280975.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TSvcnjQ06Jg/uplcv?utm_term=gre+physics+practice+questionsPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A4 17188 bytes
SHA-256: df9a293d7388863164f1e92a9fa619c53fc81e573afe8032087bd83080c9c92a
font_01_sfnt_off0000fd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD70 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11587 10824 bytes
SHA-256: d0209a7544002e3517148eb3ec95ae40f806d65dd6167d9c6f2ffd73a12850f0