Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bfd6fda436acf3…

MALICIOUS

PDF

319.1 KB Created: 2022-03-19 17:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: 81032559f2570c826e8c8d561228f5ba SHA-1: d86e72cde4c9759a3d32145173364f03ac97a5ce SHA-256: 72bfd6fda436acf37c07dfa84025608fb742c24e7564e15d3d8161d4ecbf7ef6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7582

Heuristics 6

  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=basanti+chumma+de+dj+song PDF link annotation
    • http://cadex-forensic.ch/app/webroot/kcfinder/upload/files/sofuzepeserugunaje.pdfIn PDF document text
    • http://studiozammuner.eu/userfiles/files/razugebagojunate.pdfIn PDF document text
    • https://seerupit.dk/assens/file/pexelononaz.pdfIn PDF document text
    • https://www.xyoaa.org/sites/default/files/files/bilivuzebakujixafizu.pdfIn PDF document text
    • https://gs-hemeringen.de/ablage/userfiles/files/74135662501.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dc0f664c6e94744b49d387afd148aaed/gomalaganow.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161fbef7979f60---62094897251.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/mosivimusilokemolumi.pdfIn PDF document text
    • http://allergya.news-read.com/upload/files/pulima.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621c9111dc68a---93104578995.pdfIn PDF document text
    • https://milliondollardesiclub.com/upload_files/featured/files/9264865376.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/162310eff1f9f2---87177521093.pdfIn PDF document text
    • http://zssadkowice.pl/pliki/79788462422.pdfIn PDF document text
    • http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/28501105759.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/a7d1e25813f3107ad7451dca5d97df76/pesojetuwu.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/ne89bf9s4jv5gq0jpqou3hbe7f/xajoxotosubejizav.pdfIn PDF document text
    • http://kochamsushi.pl/UserFiles/file/xifafekunilosujokuwu.pdfIn PDF document text
    • http://polipack.ru/content/file/maxuluduxit.pdfIn PDF document text
    • http://zenhowell.com/upload/file/turegudenuwozezabajinozoj.pdfIn PDF document text
    • http://7m-shop.com/userfiles/file/xifowibasalutetirukiriwal.pdfIn PDF document text
    • https://by-express.com/upfiles/editor/files/59968043873.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/nozosurik.pdfIn PDF document text
    • http://www.alex-vasilkov.ru/images/wisdom/file/pupazigefezixaxavejaligo.pdfIn PDF document text
    • http://wmasgroup.com/userfiles/file/47193521783.pdfIn PDF document text
    • https://tw-itemaos.com/ckfinder/userfiles/files/xuzawusokimaxuborofufeko.pdfIn PDF document text
    • http://australiandc.eu/uploads/ckeditor/files/mewakuneg.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/zibuborebatemejoti.pdfIn PDF document text
    • http://eshs.cz/www/kcfinder/upload/files/997607083.pdfIn PDF document text
    • http://minhanh.com/files/magefudatuzebalanojipu.pdfIn PDF document text
    • https://fruitssupplier.com/app/webroot/img/files/76031400674.pdfIn PDF document text
    • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/34383737691.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/tigesejejujunuvamudiponog.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_off000490f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x490F5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004a815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A815 10952 bytes
SHA-256: 2417f427202048f334df8b11d8e736f8a73fc62d34f60f682c65e610f5804dbf
font_02_sfnt_off0004c11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C11C 17224 bytes
SHA-256: 77ceefdad8d1ccde9d090ebc2e72842bf597b82e8571b36a6053dc71f9d65220