Malicious PDF — malware analysis report

Static analysis result for SHA-256 191970e963cb2bf4…

MALICIOUS

PDF

314.2 KB Created: 2022-02-01 10:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: c5b960e8696e82ee59a198dacf28b80f SHA-1: c01971d1eedf4036aa933520d804d778a3f9ce40 SHA-256: 191970e963cb2bf47d2fb4c1d1efa7576f902558b4bcbdf1f53609eea5d0fd6c
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6972

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.
  • 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=manual+bugaboo+cameleon+2010 PDF link annotation
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614c33b5bd635---30421859633.pdfIn PDF document text
    • http://thietbiantoanttk.com/uploads/files/bexidodo.pdfIn PDF document text
    • https://kimcert.org/E/file/dezukejazudupatasawekiva.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/nafolasetiwisetotumog.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16166c86e1e8fd---dativuturovu.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1618e5883b6fcf---jigafinupirasaxi.pdfIn PDF document text
    • http://szymonadamczyk.pl/uploads/fck/file/pibedukeniluj.pdfIn PDF document text
    • http://bulongvungtau.com/media/ftp/file/zewatavepulewamu.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/gevewaxesosutibadeg.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/nikozazudexulij.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/82313913310.pdfIn PDF document text
    • https://abcoegypt.com/userfiles/files/96098690786.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cc754a213fb---zologowuzot.pdfIn PDF document text
    • https://wonkingchina.com/d/files/82052767362.pdfIn PDF document text
    • http://teresachild.com/upload/files/40739515847.pdfIn PDF document text
    • http://matchedtubes.de/userfiles/file/pudavox.pdfIn PDF document text
    • http://onishi-kyosendo.jp/archive/67540665440.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16135f883a314b---lavenuzugofadegirilexore.pdfIn PDF document text
    • http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/tijakotesoji.pdfIn PDF document text
    • http://tunecharts.com/userfiles/file/87045237993.pdfIn PDF document text
    • https://aiwatopup.com/ckfinder/userfiles/files/judorisaxaletozegawuke.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/xokulexe.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b93c2eb3e---87983471571.pdfIn PDF document text
    • https://univerosg.com/ckfinder/userfiles/files/83091178078.pdfIn PDF document text
    • http://fertilityupdates.com/userfiles/files/11178873913.pdfIn PDF document text
    • http://www.stemcellhairclinic.com/files/files/61675020159.pdfIn PDF document text
    • http://studiolorenzino.eu/userfiles/files/53992475245.pdfIn PDF document text
    • http://www.juniorcollege.cl/ckfinder/userfiles/files/tawojej.pdfIn PDF document text
    • http://goodlack.cz/userfiles/file/6683991781.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_off00047b4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B4E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000491ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x491ED 17800 bytes
SHA-256: 3a5a97e31ecf9388d6e5ef1aad5afeb58b467cb2dcfcd7e574d3c236a32348b6
font_02_sfnt_off0004bf79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF79 10644 bytes
SHA-256: 36eb83f39c68dc071a5b91b48acc65f63751add964b84030d5853d62af85310f