Malicious PDF — malware analysis report

Static analysis result for SHA-256 af23e7e59fd5ef98…

MALICIOUS

PDF

336.3 KB Created: 2022-03-03 01:35:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 9ab68e92cb6808c26bddd5ecde392981 SHA-1: 95001cf607cced2804e17f8d4cca234b8dbb0511 SHA-256: af23e7e59fd5ef98b66503846ea96a040a8da2d229b6bdd25cfad4467643ee32
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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://colod.co.za/XSRYdR1H?utm_term=chinese+movies+online+free PDF link annotation
    • https://www.bluelabs.it/shazar/admin/assets/js/ckeditor/kcfinder/upload/files/files/zitufufuwoliwakiruxadapol.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/bb3e3c1dd94f10a41429017ec8b1139a/20569011330.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/98939889769.pdfIn PDF document text
    • http://tenis-klubmoj.si/uporabnik/file/wikulotesev.pdfIn PDF document text
    • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/60871619592.pdfIn PDF document text
    • https://shellserva.nl/docs/Image/file/96731466891.pdfIn PDF document text
    • http://myarrahnu.com/mo_images/files/wojutanapipuseboxajedap.pdfIn PDF document text
    • https://yomadesign.com/userfiles/Proj_Name/files/39961428474.pdfIn PDF document text
    • https://ccs-corporation.com/ckfinder/userfiles/files/xutexedikutiperidetitili.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161fc32ff263c2---zotudobudunomulinupat.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/27c61662407bb94cbb037df78c368160/lefosodojato.pdfIn PDF document text
    • http://mediasingrid.com/js/new/fckeditor/userfiles/file/54136889366.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/162060feb32c18---wamemowojapebo.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/1916916530.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/db4aea5184a8e187e55970fbd48b11f8/29475692755.pdfIn PDF document text
    • http://gk-eventus.ru/admin/ckfinder/userfiles/files/2198227457.pdfIn PDF document text
    • http://unisela.lt/files/files/61231184022.pdfIn PDF document text
    • https://insinkerator.us/images/uploaded/file/3366628324.pdfIn PDF document text
    • https://mingyi-lock.com/data/file/userfiles/files/36590568681.pdfIn PDF document text
    • https://marblobath.marblobaths.ph/app/webroot/img/files/fuvov.pdfIn PDF document text
    • http://grosfillex.com.br/admin/plugins/ckeditor/kcfinder/upload/files/gimulilejajelewi.pdfIn PDF document text
    • https://sealand-pptc.com/userfiles/file/putok.pdfIn PDF document text
    • http://greenburysecondary.co.za/kcfinder/upload/files/pexumonukasabupiwosemobax.pdfIn PDF document text
    • http://oreoltour.ru/sites/default/files/file/20574810301.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16214869aae8f7---bumozanu.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162049ef4bacba---74439993786.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/2pkodf6lsqfn99tc4t0tf407jo/fivupidogop.pdfIn PDF document text
    • https://stancijanegrin.com/userfiles/file/21965494037.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20220217004455.pdfIn PDF document text
    • http://tuecpa.com/file_media/file_image/file/zalonetipaxa.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_off0004d03b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D03B 19448 bytes
SHA-256: 089f80fa79a0a9c31c53e5170ffe49a550565e932c6d8e13105f5bc8127b30c8
font_01_sfnt_off000503b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x503B6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51AD6 10316 bytes
SHA-256: 8adfaacb9de0ff8b1282a830fbb63bae2642737edbcdf638ca8327ea04a2c1a8