Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8fdc833830024a…

MALICIOUS

PDF

266.7 KB Created: 2022-02-07 00:21:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: fc274d6336aaf231983bb61f3a205198 SHA-1: 1a8e3d5513e2e6ebe8543df18b0f54a7e5a27a1f SHA-256: aa8fdc833830024a453946b4588cb041c283636ad177ee71780fc76e7b3dd4db
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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://fecuq.co.za/XSRYdR1H?utm_term=photo+blender+app++for+pc PDF link annotation
    • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/td39nmt36gsv24b4vnkfra1ulu/2623576914.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161c236b9c938b---13828636243.pdfIn PDF document text
    • http://banderlogclub.ru/kcfinder/upload/files/tinobeparuwaridetemaja.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cc20eb20482---guxefem.pdfIn PDF document text
    • http://finara-v.com/file_media/file_image/file/50811262699.pdfIn PDF document text
    • http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/22897901352.pdfIn PDF document text
    • https://dptech.vn/uploads/files/muruwulunomunokobigazapos.pdfIn PDF document text
    • http://dostavka.markasib.ru/ckfinder/userfiles/files/velubajijowufeveduvopukax.pdfIn PDF document text
    • http://madiagranitosilano.it/userfiles/files/19601147621.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16181933ec8a8d---2919094919.pdfIn PDF document text
    • http://office-tommy.com/images/file/27628127120.pdfIn PDF document text
    • http://www.riviera.edu.np/ckeditor/kcfinder/upload/files/3426370991.pdfIn PDF document text
    • http://i-physiology.ru/upload/jupejefoninifozare.pdfIn PDF document text
    • http://cyuanmei.com/userfiles/file/33595420299.pdfIn PDF document text
    • http://cpspcb.com/uploads/files/19790516686.pdfIn PDF document text
    • http://american-security-inc.com/assets/ckfinder/userfiles/files/96625597609.pdfIn PDF document text
    • http://tearose-kitchen.com/sites/default/files/images/imcefile/lifotalu.pdfIn PDF document text
    • http://autokaryszczecin.pl/userfiles/file/witazubusemiviwapidofa.pdfIn PDF document text
    • http://crystal-lamp.ru/uploads/files/tasirejuror.pdfIn PDF document text
    • http://videotour24.com/data/fckupload/file/babewesosipobudavim.pdfIn PDF document text
    • http://qzmrmfhyxh.com/upload/file/58639495489.pdfIn PDF document text
    • https://conexusinternational.com/ckfinder/userfiles/file/kilawukega.pdfIn PDF document text
    • https://ferropula.hr/files/pazumadepokarozesadoneme.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/87742158789.pdfIn PDF document text
    • https://rsun.pro/admin/ckfinder/userfiles/files/pilejas.pdfIn PDF document text
    • http://anantasandesh.com/dbros/public/ckeditor/kcfinder/upload/files/48762573313.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617ccee366b6f---tonitibagonafa.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_off0003c26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C26E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003d98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D98E 10600 bytes
SHA-256: 154f3cbd71967be948f51a69e3d12b37c673bee0c0a34e9d04adefd195e53fa3
font_02_sfnt_off0003f178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F178 16440 bytes
SHA-256: e8d211966a91cc1ebf935aa9fb874daf6c8b24cda5874321d8721519044dff57