Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5df8af1e3806611…

MALICIOUS

PDF

326.1 KB Created: 2022-03-23 07:31:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a519c2e93e860bcd6af55d1e9c0e97e5 SHA-1: 4f8844bcfe13267f235d71c9efd943083b93636e SHA-256: c5df8af1e380661185326dfa349675aad91a63b8a44a5b41974af810575b6be1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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://colod.co.za/XSRYdR1H?utm_term=minecraft+banner+designs+guide PDF link annotation
    • http://kfbma.org/files/fck/file/zoganexowulasesadenawo.pdfIn PDF document text
    • http://0985028898.kad.tw/kads/ckfinder/userfiles/files/82578343811.pdfIn PDF document text
    • https://nichecnk.leaddeehub.com/userfiles/files/vorixonod.pdfIn PDF document text
    • http://silexsys.com/ckeditor/kcfinder/upload/files/35225544097.pdfIn PDF document text
    • http://longthinhphat.net/uploads/files/36637488428.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/e5515012e882efd3fa0d4016ce998b4d/23177506783.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/39986146650.pdfIn PDF document text
    • http://metalltechnik-kutschi.at/pogodik.pdfIn PDF document text
    • http://poptheme.cn/uploadfile/files/20220201_073718.pdfIn PDF document text
    • https://cyklo-wellness-penzion-palice.cz/content/logusuxefawosoriwiwetil.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/fugelaxoturuxitanasitodig.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/10946293700.pdfIn PDF document text
    • http://slipa.site/0429/upload/files/52199912292.pdfIn PDF document text
    • http://atolyemtm.com/depo/sayfaresim/file/rimowoxonozovaxuze.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/162118a830a5fd---venokid.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/nawoxitatewodogisekono.pdfIn PDF document text
    • http://www.dispatchls.com/backend/web/kcfinder/upload/files/27725418970.pdfIn PDF document text
    • http://centonze-vini.com/userfiles/files/17682926167.pdfIn PDF document text
    • http://webyork.co.uk/kcfinder/upload/files/9387220759.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162387af9c3301---14936759314.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/nagugabobubunexerutig.pdfIn PDF document text
    • https://ppuhperspektywa.pl/files/edytor/file/78508485766.pdfIn PDF document text
    • http://akcihlar.cz/userfiles/file/vuwekesipomo.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16228b03bdfe16---85112478173.pdfIn PDF document text
    • http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/71572658244.pdfIn PDF document text
    • http://lmleadmanagement.com/userfiles/files/98275590158.pdfIn PDF document text
    • http://1careglobal.com/upload/files/vifekedewilaperasilejumow.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/05c9702a2a7b5c85f70cb94fc9170966/zimuwowesuzazinuviwivijas.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/162068740bd259---bazuvuxututag.pdfIn PDF document text
    • https://glamweddingdesign.com/userfiles/file/gipobetomonudigokapurego.pdfIn PDF document text
    • http://djpress.pl/Image/files/7370311646.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16231557f7aa41---32841570062.pdfIn PDF document text
    • http://7m-shop.godyouoh.com/userfiles/file/70299344724.pdfIn PDF document text
    • http://polethique.ch/uploads/files/53735356910.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210bf7280700---xumixizenusokugawekega.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_off0004a004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A004 10720 bytes
SHA-256: 8235099e5f4a4fa15754871077c6d6c9066142b83d1f7d4b64f92c78f144d459
font_01_sfnt_off0004b891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B891 21244 bytes
SHA-256: 9b4fa705756b97f80e55a82898133bdd67a7964f1ff77c41de125a220bf68814
font_02_sfnt_off0004f04b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F04B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9