Malicious PDF — malware analysis report

Static analysis result for SHA-256 1916f3aac24dd9b1…

MALICIOUS

PDF

319.2 KB Created: 2022-03-24 20:13:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 90deb56569747d3377a62df018739ddf SHA-1: 80884ae1d397cfc0eabdd458992cf1ba6cbaddf5 SHA-256: 1916f3aac24dd9b1ef2f312b2f3644b82a85439221ad578db1449fe6be3accf7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6797

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cafij.co.za/XSRYdR1H?utm_term=pixel+3+camera PDF link annotation
    • http://mountainsidecamp.com/upload/files/jeninetu.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/wigoxumex.pdfIn PDF document text
    • http://szentdorottyapatika.hu/files/xasezosazige.pdfIn PDF document text
    • http://t-cso.com/upload/file_folder/file/fikefefoxidegudux.pdfIn PDF document text
    • http://restauracja.jtg-antracyt.pl/files/file/lemorujazemagakazet.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/27439696360.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1620bc6186b52e---60139238355.pdfIn PDF document text
    • http://thucphamtruongthanh.com/img/files/xopuvewijabus.pdfIn PDF document text
    • http://saringkarnwood.com/UserFiles/file/jojasakopakamulamesapifi.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16212b8262f9f3---79250276678.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/161fb04479c812---rogadadovigotojojepif.pdfIn PDF document text
    • http://wittsend.com/userfiles/file/37183355201.pdfIn PDF document text
    • http://casim.se/kcfinder/upload/files/tugoraluromel.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/teqtk4nus87nnp0plak97480rv/jepabivuwiluxox.pdfIn PDF document text
    • http://vanguardhungary.hu/userfiles/file/kojiwu.pdfIn PDF document text
    • https://www.italianamaterassi.it/admin/kcfinder/upload/files/juzopodudukerotoxusuga.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/36251324297.pdfIn PDF document text
    • https://vikta-fish.ru/upload/files/vujenobizuzawuzogu.pdfIn PDF document text
    • http://xn--80aantfcaehjbxzf1m.xn--p1ai/userfiles/file/kivepiwawubuwopobigemobe.pdfIn PDF document text
    • https://loyallcanada.ca/editor_files/file/19812280179.pdfIn PDF document text
    • https://vanchuyensahara.com/site/files/gexafakepunujegevazozafe.pdfIn PDF document text
    • https://gkia.org/kingkong/userfiles/files/fimisuxajubisuvamuf.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/27246820769.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1621cee8932594---62629454926.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16216f21a5d5f1---soxatar.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236f19a69411---desedojoxuwovolilijug.pdfIn PDF document text
    • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/silubumo.pdfIn PDF document text
    • https://stonemasonscottage.com/upload/files/56930170690.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/589636bd9eb6240f9d98f6a1e4938656/midozi.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16226617e81e26---gupaxuwigile.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/71396764091.pdfIn PDF document text
    • http://pobierzplik.pl/uploads/files/robanerazikokax.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/162194eac4ec57---85314249326.pdfIn PDF document text
    • https://cokhivietuc.com/img-vietuc/files/ramezewivimef.pdfIn PDF document text
    • http://xpeedon.net/userfiles/file/20220315024609.pdfIn PDF document text
    • http://westernstudioservice.com/admin/userfiles/file/72072461211.pdfIn PDF document text
    • http://tycoonmedical.com/userfiles/file/tozoxetatuvotigoret.pdfIn PDF document text
    • http://andersen-racing.com/pictures/editor/files/86360328039.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_off00048b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B1B 10176 bytes
SHA-256: 671ca3966c2fd5ea829ea94cfc101508fab72084523779f0e0523d1cf5961363
font_01_sfnt_off0004a1e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1E3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004b8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B8FE 20160 bytes
SHA-256: bba10a9d12a5e0d17b212688c118ba6dddc3000dab2134bbfb4c69e110750a3d

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