Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d2dcfb9bc74b61…

MALICIOUS

PDF

409.1 KB Created: 2022-03-26 01:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 8bdd18663c6715df25a46147e5c64470 SHA-1: 6778a8603dcf340a34e6299f27b30e81ade38d5b SHA-256: c5d2dcfb9bc74b61abae9886091c6202f0ae175e068d1f44076c9070cc8d7dc6
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

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://mifuj.co.za/XSRYdR1H?utm_term=melhores+poemas+de+amor+portugueses PDF link annotation
    • https://www.starvisaservices.co.uk/application/elements/plugins/kcfinder/upload/files/zamonureku.pdfIn PDF document text
    • https://pre-www.bridge-college.com/uploaded/ckeditor/files/94320336526.pdfIn PDF document text
    • http://phongkhamthienhoa.vn/images/files/49975593664.pdfIn PDF document text
    • http://bearbuy888.coco1490.com/upload/file_folder/file/89943180627.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/fbc9ad442739ab16b3aa5eb480c0ceaf/59843754602.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/pibelolinitulafibino.pdfIn PDF document text
    • http://novichiha.ru/pic/file/58966612748.pdfIn PDF document text
    • https://datatech-int.com/userfiles/file/50512347698.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/bajodetimewaliwojer.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/82685486270.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/geninijopilepi.pdfIn PDF document text
    • http://polethique.ch/uploads/files/xavugaxubitubi.pdfIn PDF document text
    • http://location-en-guadeloupe.com/js/kcfinder/upload/files/92835909727.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/162160375b60c4---kuzenirabob.pdfIn PDF document text
    • https://bulendengin.com/upload/ckfinder/files/dosumotasunegemotuj.pdfIn PDF document text
    • http://bluecars.pl/userfiles/file/18030196352.pdfIn PDF document text
    • https://taipeitccia.org/CKEdit/upload/files/mowirafejodok.pdfIn PDF document text
    • http://85560891.com/upfolder/e/files/20220213015402.pdfIn PDF document text
    • http://farmina.ru/uploads/files/56932739229.pdfIn PDF document text
    • http://rbc-bezorgdiensten.nl/upload/fitejudedubevabagaregu.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/luluwo.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/gevubupufokige.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1622bd1435743c---damizobuke.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1623130a31a14c---37450646160.pdfIn PDF document text
    • http://eurogalvano.com/admin/kcfinder/upload/files/tizixatuzaronilibuvi.pdfIn PDF document text
    • https://mytekas.com/UserFiles/file/gebogugewowut.pdfIn PDF document text
    • http://koreabulk.net/userData/board/file/lukomonatulotojarokedate.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623b9f3311371---mumuv.pdfIn PDF document text
    • https://iqmuseum.mn/uploads/files/bifokuvifi.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/606c272630aeef940efe26f91999d4d1/vamujusiratavago.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/2bc635a1b6eb6b4dfd6d6ec1ac380c19/zugedew.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/vexibujifudenekunam.pdfIn PDF document text
    • http://formacio.fic.cat/uploads/file/20398915267.pdfIn PDF document text
    • http://zkbz888.com/uploadfile/file///2022020911484771.pdfIn PDF document text
    • http://18554080.com/userfiles/file/jolevonizuxodux.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_off0005eacb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EACB 23332 bytes
SHA-256: c6642d57d85274d17a4f62aaaa617488c78885c36a037928fbb2141bb1d3fba3
font_01_sfnt_off00062497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62497 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00063bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BB7 10736 bytes
SHA-256: 7957dac494860c880b45e39bc9a3c86aa40787f0f08900f1f74cfa0c294bb4ff

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