Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f539e55b2891d0…

MALICIOUS

PDF

295.3 KB Created: 2022-03-10 15:46:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 5f2188e7117cd71d1c1acfb76d1c2fa9 SHA-1: 41bf3740ca63db65c212ebc439da52c69f669c47 SHA-256: 98f539e55b2891d02a04a6cbcb1c6bda55547e020cbf288ae04882a0f2bf8d09
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6464

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://wirut.co.za/XSRYdR1H?utm_term=form+7+endorsed+warrant+alberta PDF link annotation
    • http://hcvitamin.com/webroot/img/files/78674438069.pdfIn PDF document text
    • http://aven.su/userfiles/file/65777740705.pdfIn PDF document text
    • http://ottomaniantextile.com/userfiles/file/9238014686.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/1dj7ue27l0rg849bbeq0borkd48f5ruf/nugopatatirado.pdfIn PDF document text
    • https://elmawadah.com/userfiles/file/genamaviferusowe.pdfIn PDF document text
    • https://vitanov.rs/files/16556814200.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/6sklbfr4ujcuemrnmgilqba129/bufojefom.pdfIn PDF document text
    • http://tcgardening.com/userfiles/file/2022020812035073499.pdfIn PDF document text
    • http://hammaddedunyasi.com/panel/kcfinder/upload/files/terexise.pdfIn PDF document text
    • https://full-flavors.com/img/Data/file/21601762636.pdfIn PDF document text
    • http://swhos.com/upload/files/zewamowagiki.pdfIn PDF document text
    • http://zdk-engels.ru/upload2/files/nuruv.pdfIn PDF document text
    • http://www.ciesol.es/ckfinder/userfiles/files/79795744527.pdfIn PDF document text
    • http://familiegravesen.dk/userfiles/file/zowog.pdfIn PDF document text
    • http://qlinairnv.be/userfiles/file/87432120752.pdfIn PDF document text
    • https://i-triada.net/upload/files/pidugonewidesusa.pdfIn PDF document text
    • https://www.xtraordinaire.org/web/kcfinder/upload/files/fobir.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/64ed83debd12f02e67f56d840fbe7fd5/jiwodudofevuzijim.pdfIn PDF document text
    • https://fme.ba/kcfinder/files/24526766981.pdfIn PDF document text
    • http://0470caipu.com/data/upload/File/zajikijiletotopobafula.pdfIn PDF document text
    • http://www.bongbansaigon.com/uploads/files/7583283151.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/paforoxekukuvip.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/c0895747766d876305baf4fe0853bc17/25637254666.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162268b5848d2e---62721290405.pdfIn PDF document text
    • http://yusungchart.com/userData/board/file/bufedepatumot.pdfIn PDF document text
    • http://lindendirect.com/ckfinder/userfiles/files/19814663097.pdfIn PDF document text
    • https://www.coopi.org/admin/assets/js/ckeditor/kcfinder/upload/files/files/sugoxutojuladuwadiwadini.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161fb4d5bc3997---dijuwejavufufabeda.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/7985c74fed18b97accbcb451324594f1/95966611513.pdfIn PDF document text
    • http://nfc.soo.jp/file/64167193942.pdfIn PDF document text
    • https://carnac.kendalch.com/upload/files/61918997587.pdfIn PDF document text
    • http://aprt1day.ru/file/zirupijisifufaseworixi.pdfIn PDF document text
    • https://rosettes.it/userfiles/file/40772531942.pdfIn PDF document text
    • https://xaydungkienthiet.com/upload/files/wafimosajomaluneromiwadis.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/sesajimad.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/5r1blff4s86atascbhh6hiif33/madagozav.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 extracted file (font_00_sfnt_off00042e71.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00042e71.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E71 17860 bytes
SHA-256: 82913e4c31e76efa0009873664c65f45685167aef159b2784fa45a4d3335cb00
font_01_sfnt_off00045c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C9F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000473bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x473BF 10572 bytes
SHA-256: 9ddc5d32ebb4a66c18286f9bc94da1526e00bdeba52bb2e8296ffe92c342bf4e