Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd739f63f678fd04…

MALICIOUS

PDF

267.8 KB Created: 2022-02-23 11:01:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 671170562026f1463e71e9cee5bd83ee SHA-1: f24405346cf50dea34ea12f75f8740e95aa9cdbb SHA-256: cd739f63f678fd04006b4498db63aab3e1472d57468aea8447a967962f0a4bb9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6781

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://mifuj.co.za/XSRYdR1H?utm_term=battlefield+1+apocalypse+dlc PDF link annotation
    • https://polskastolarka.pl/userfiles/file/28828225156.pdfIn PDF document text
    • http://dubilex.com/userfiles/files/57604430272.pdfIn PDF document text
    • http://hotelborgodeipoeti.com/userfiles/files/82583069806.pdfIn PDF document text
    • https://www.almuhja.com/ckfinder/userfiles/files/vekaki.pdfIn PDF document text
    • https://www.3gimmobilier.com/kcfinder/upload/files/92045646938.pdfIn PDF document text
    • https://www.padanguparduotuve.lt/ckfinder/userfiles/files/bipusa.pdfIn PDF document text
    • https://webshopplus.nl/app/webroot/files/userfiles/files/pezameresoludalu.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/dozititosiwudiwoxilulaja.pdfIn PDF document text
    • https://oawebserver.com/piceditor/file/deramu.pdfIn PDF document text
    • https://stonemasonscottage.com/upload/files/78406517522.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161369ac5615a7---79241576677.pdfIn PDF document text
    • http://kondicionery-dzerzhinskij.ru/upload_picture/file/6491283929.pdfIn PDF document text
    • https://bientannamhuy.com/wp-content/uploads/files/funeji.pdfIn PDF document text
    • http://inbond-cn.com/userfiles/file/14991111647.pdfIn PDF document text
    • http://gadkowski.pl/repository/filemanager/file/kusatokevadivaxobopi.pdfIn PDF document text
    • http://jainfarms.com/uploads/mikijix.pdfIn PDF document text
    • http://agapetown.net/ckfinder/userfiles/files/20867776873.pdfIn PDF document text
    • http://pawsandtiaras.com/ckfinder/userfiles/files/xariruvutobel.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/9ebabab8cc112a5b41a96b3f0fb6a921/bigobenipij.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/9ef35920cf9ea6e331c94a69ab467ab6/54358248530.pdfIn PDF document text
    • https://soudureornementalelauziere.com/upload/editor/file/kowizosokidagabu.pdfIn PDF document text
    • http://reklamavysocina.cz/UserFiles/File/mafakuv.pdfIn PDF document text
    • https://kangaroovietuc.vn/webroot/img/files/56262912685.pdfIn PDF document text
    • http://emblem4home.com/UserFiles/Member/File/xunatijekovifiruvuxakefo.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e67ff286aa---86258065631.pdfIn PDF document text
    • http://cuacuonductudong.com/upload/files/kotobozuxibe.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_off0003c219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C219 10628 bytes
SHA-256: 9be2686029b61cb782d61149d0f327f202adddffcf18a5d7b3b66fcbd38dc650
font_01_sfnt_off0003daa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DAA5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003f1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F1C0 17852 bytes
SHA-256: 823cf7044ac83f5971022f9ca9d20e98fa192e8ff3a7705d8ffbdebda4e6df36