Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da36ed14439ff1…

MALICIOUS

PDF

378.7 KB Created: 2022-04-14 01:42:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 3f200ad5056b1f430bbb6de9f76125d6 SHA-1: 2c40b6a62594625d26c0a07672b46bc80f598fa4 SHA-256: c5da36ed14439ff14259f33b30bdba8426f52c7be6be9175f9bd177c71f4fc66
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7188

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://lovig.co.za/XSRYdR1H?utm_term=format+carte+de+visite+en+cm PDF link annotation
    • https://rurajutudap.weebly.com/uploads/1/3/1/4/131437622/gavikonefamumavusu.pdfIn PDF document text
    • http://wideanglepackaging.com/ckfinder/userfiles/files/fenewoso.pdfIn PDF document text
    • https://crc.creativechange.net/ckfinder/userfiles/files/44850599632.pdfIn PDF document text
    • https://questyme.ca/userfiles/file/20225583970.pdfIn PDF document text
    • https://bewupoterefi.weebly.com/uploads/1/3/1/3/131380107/7103a.pdfIn PDF document text
    • http://polishedskincare.com/minaret/uploads/file/9896293366.pdfIn PDF document text
    • http://samarthservice.com/userfiles/file/kipasofapukevajizajol.pdfIn PDF document text
    • https://niridugur.weebly.com/uploads/1/3/5/2/135296669/luzifofug_faminitalud.pdfIn PDF document text
    • https://a1-recruitment.a1-recruitment.ro/v2011/Files/fck_upload/file/zanejefof.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620798cc35768---92853303337.pdfIn PDF document text
    • https://nuxaluvuwij.weebly.com/uploads/1/3/5/9/135997537/5725907.pdfIn PDF document text
    • https://thermocalnepal.ramjanki.com/ckeditor/kcfinder/upload/files/66024827825.pdfIn PDF document text
    • https://tafulagi.weebly.com/uploads/1/3/4/6/134608062/bejixategixore-ninijew.pdfIn PDF document text
    • https://tupetemen.weebly.com/uploads/1/3/0/7/130738754/kozozixidab_ximagasisugex.pdfIn PDF document text
    • http://www.insight-assessment.com/ckfinder/userfiles/files/70226422773.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/fitakonudopoze.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/37774855509.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/df7b33cbf41db249ee454663dcda0233/nedogaguritaxofa.pdfIn PDF document text
    • https://kitchensofdiablo.com/upload/file/88772190450.pdfIn PDF document text
    • https://dexulivixuwe.weebly.com/uploads/1/3/0/7/130739852/1257668.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624dd407cd069---simid.pdfIn PDF document text
    • https://acmfashion.vn/uploads/files/fejujak.pdfIn PDF document text
    • http://com123.vn/uploads/file/89005922918.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/sgdfqa9u5mui58agcnji5eovq8/nevuluro.pdfIn PDF document text
    • https://mrdak.cc/uploadfile/files/81374245863.pdfIn PDF document text
    • https://kepedeko.weebly.com/uploads/1/3/5/9/135959580/gadanated.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc0fbb1c80b---pulego.pdfIn PDF document text
    • https://ceylanotel.com/firma/files/sodatiwilusuked.pdfIn PDF document text
    • https://812423.situshoki1.com/contents/files/zenoxukatiter.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/6693832967.pdfIn PDF document text
    • http://apart1day.ru/file/25084327357.pdfIn PDF document text
    • http://ptd-tver.ru/content/files/upload/files/83205546869.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f5fcd24514---josoganetemiru.pdfIn PDF document text
    • 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_off000577f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x577F2 19708 bytes
SHA-256: 2070d95e11bf2e31d25ebe3d526c28d0170cc29b93cfd75ad16e39dca090db81
font_01_sfnt_off0005ab23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB23 10528 bytes
SHA-256: 24714942e932c941e1ee6211fe7af83617c6f577e5d096236a0220e2ad4be3d6
font_02_sfnt_off0005c325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C325 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1