Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dfba418df43637…

MALICIOUS

PDF

86.9 KB Created: 2021-10-30 01:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 0b42da394a6f916e095eeb7942390b7d SHA-1: a7615088df92026d5c7ecf8d875b7582573baef8 SHA-256: c5dfba418df43637e70f750202c7370bc6788ff93739c4b79a4de244b7412a4b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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 https://pernambucoimortal.com/imagens/files/90264055926.pdf In PDF document text
    • http://busangh.com/attfile/fckimg/file///2021102592148_784440889.pdfIn PDF document text
    • http://mpwlawpa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tuduwelixovigidexiw.pdfIn PDF document text
    • http://irfanmakina.com/depo/sayfaresim/file/41263987521.pdfIn PDF document text
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16162b8a5e27a0---lufinariponolapeb.pdfIn PDF document text
    • https://fnb-concepts.com/images/uploads/files/zegifig.pdfIn PDF document text
    • http://basaritarim.net/admin/editor_resim/file/93608994068.pdfIn PDF document text
    • http://mounceconstruction.com/userfiles/file/limenewam.pdfIn PDF document text
    • https://jagamimpi.com/contents/files/bawodumidunafasag.pdfIn PDF document text
    • https://igescanada.com/ckfinder/userfiles/files/rerona.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/94928178321.pdfIn PDF document text
    • http://spartapr.com/images/upload/file/bepavigimefavivalapuf.pdfIn PDF document text
    • http://zensushialiso.com/uploads/files/45992050730.pdfIn PDF document text
    • http://kennycojewelry.com/userfiles/files/202109/1632349530.pdfIn PDF document text
    • http://legalinet.eu/userfiles/files/9133157873.pdfIn PDF document text
    • https://opsclown.it/ckfinder/userfiles/files/samutasavodomenok.pdfIn PDF document text
    • http://harasim.cz/uploaded/files/perisa.pdfIn PDF document text
    • http://snap-drone.com/userfiles/file/fozopat.pdfIn PDF document text
    • http://tischtennis-kiel.de/images/file/6650107639.pdfIn PDF document text
    • http://silesiacapital.eu/data/file/sixitala.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/c54f21da4193ff4c60a4c12044b12123/bevixerekideguxu.pdfIn PDF document text
    • http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/jelakawuzitidepibevif.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/2I9n2o-U8HI/uplcv?utm_term=ielts+reading+the+life+and+work+of+marie+curiePDF 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_off0000eb6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001037d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037D 18612 bytes
SHA-256: 6a6b9b9f64fa2670de70cdce5bc94493f6b6ee0b4c91a307682482eae6dd692e
font_02_sfnt_off000133fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133FB 11152 bytes
SHA-256: 5271755574ddedc1f17ea0f1764eff3fc9b7030fb6cf5ee9d826152c998c3a16