Malicious PDF — malware analysis report

Static analysis result for SHA-256 5525608bb080f47a…

MALICIOUS

PDF

556.6 KB Created: 2022-04-23 20:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 34e89db65c5bea3c7243864997d812f6 SHA-1: facbf6b14998fc1b405de609a8d0257a26b3ba04 SHA-256: 5525608bb080f47a946fb4acb42b83a1791d41df2bfca9bcf553cc8c6e61190a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5373

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://sunuf.co.za/XSRYdR1H?utm_term=bach+fugue+analysis+pdf PDF link annotation
    • https://my-natural-style.net/upload/files/jupesuxev.pdfIn PDF document text
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/f9f56655d5c20c69c4ee2f5fd0c65582/lagonuzivopekamexalate.pdfIn PDF document text
    • https://aurorahoian.com/app/webroot/upload/files/rukaxanazit.pdfIn PDF document text
    • https://ikayros.com/app/webroot/upload/files/delejoruxidesebaperejoga.pdfIn PDF document text
    • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/47242631595.pdfIn PDF document text
    • https://divamokavagi.weebly.com/uploads/1/3/4/8/134871471/mumuzen-moxibuxeze-xitadadolezo-rekeloga.pdfIn PDF document text
    • https://zebamejiwan.weebly.com/uploads/1/3/4/3/134312785/fewebaxig.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16233bd66319d6---24543896846.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/162077354bfbd6---pokozasudipokebir.pdfIn PDF document text
    • https://ruxikejogotiwo.weebly.com/uploads/1/3/4/5/134576655/4283462.pdfIn PDF document text
    • https://ovistar-dz.com/ckfinder/userfiles/files/fotazumowe.pdfIn PDF document text
    • http://autord.ca/site-uploads/12362638406.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/39561800019.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/3fb7a5838a87f589685267d8b6d0845a/45071438979.pdfIn PDF document text
    • https://cmoretv.com/userfiles/sirovonikiwugij.pdfIn PDF document text
    • https://metelegib.weebly.com/uploads/1/3/1/3/131380803/giraroxiloxudukegom.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/92604551556.pdfIn PDF document text
    • http://cfboxrx.com/js/kcfinder/upload/files/59082564312.pdfIn PDF document text
    • http://www.globalnautique.nl/upload/files/sopaxatofemaroduxip.pdfIn PDF document text
    • https://suveruwifofe.weebly.com/uploads/1/3/1/3/131380558/laxipatuwamalix.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 extracted file (font_00_sfnt_off00084077.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00084077.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00084077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84077 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0008588e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8588E 10848 bytes
SHA-256: a7d1fbd928e796d3680a0d6f9c4e481ab0c0c36532f0c76636abeb4de26dee72
font_02_sfnt_off00087153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87153 19604 bytes
SHA-256: 02ab449a7070ad23b5d149b250705df9f991322113c5d40dd8d220790e007b69