Malicious PDF — malware analysis report

Static analysis result for SHA-256 793de64545dedd21…

MALICIOUS

PDF

406.7 KB Created: 2021-12-21 04:30:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: b313b09e103c02390080f993fbea4476 SHA-1: 9357632bb3366ecf39e0ca345c32da7189e6bf18 SHA-256: 793de64545dedd21fbbbc5b65492458a9ae95d90df0d402d59a8495e427ab856
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7617

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://nomylo.ru/uplcv?utm_term=receipt+spreadsheet+template PDF link annotation
    • https://upaspor.com/resimler/files/10773173728.pdfIn PDF document text
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1619f83a8aa6df---gigipovefefopanufije.pdfIn PDF document text
    • http://fred-robin.com/ckfinder/userfiles/files/15832561247.pdfIn PDF document text
    • http://sromedical.com/file_media/file_image/file/vifewi.pdfIn PDF document text
    • http://jbdclothiers.net/emailer/userfiles/file/fitikewasiweripusul.pdfIn PDF document text
    • http://budapesticukraszdak.hu/userfiles/files/roxilurokatovelibuxov.pdfIn PDF document text
    • https://kuwaitpolyurethane.com/ckfinder/userfiles/files/nibamuzifokuku.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b75c1c7045c---32861525377.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/u2s3u1n55kv04p0c0n80dr5up5/61872681871.pdfIn PDF document text
    • http://corising.info/sa_upload/userfiles/file/20211118194938.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/733372a35420e8b00375d458bc714906/jakot.pdfIn PDF document text
    • http://sxcec.org/userfiles/file/72325478797.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/rezedewixupizu.pdfIn PDF document text
    • http://gns3.swiz.eu/files/editor/15194125648.pdfIn PDF document text
    • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/58299836777.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/92915852799.pdfIn PDF document text
    • https://divanich96.ru/admin/ckfinder/userfiles/files/mapawaforobesoxup.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/melululudatuliwe.pdfIn PDF document text
    • http://xn----otbb6ahq3d.xn--p1ai/ckfinder/userfiles/files/kejudubifevejuzefov.pdfIn PDF document text
    • https://laserhkt.com/admin/uploadfiles/file/rivutonewegatujani.pdfIn PDF document text
    • http://aptekarynek.pl/zdjecia/fck/file/mimozoxumada.pdfIn PDF document text
    • http://iburgisidimarsala.eu/userfiles/files/wawokenidikejuku.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/28849173303.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_off0005ed38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED38 10600 bytes
SHA-256: b5f8148fefe47b1b2c6dc3695de2508fba6566d71e401eb57881da8a1d5c3e40
font_01_sfnt_off0006056e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6056E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00061c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C0D 18192 bytes
SHA-256: 9d939e3be931d3952eff30694cb8d64638da1694ed45ba541b55069453895c08