Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d840ef53a4fde57…

MALICIOUS

PDF

227.8 KB Created: 2022-03-24 01:24:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 743a875aca059d732d52a8d83327b118 SHA-1: 14a8b8f06033e133c6fd823f163fe4125cc3bdce SHA-256: 5d840ef53a4fde579e2f003ae6c6b1ff844703c273c6d7a465c47fc625a0c114
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

Heuristics 5

  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=outlander+season+2+episode+guide PDF link annotation
    • http://tidomusica.com/uploads/files/202202140753085142.pdfIn PDF document text
    • http://signika.pl/Upload/file/52171615635.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/93745409770.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16235630b12afa---89892129290.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e7095d70f5---57078316128.pdfIn PDF document text
    • http://quocteanviet.com/img-chamthi/files/wufifewap.pdfIn PDF document text
    • https://globalcircle.club/userfiles/file/85970409257.pdfIn PDF document text
    • https://cmsmda.neotebet.de/uploads/all/leguduxoji.pdfIn PDF document text
    • https://vjlabor.pitscovn.com/uploads/Upload/files/dokovevoranogo.pdfIn PDF document text
    • https://booburger.myagenda.cz/pictures/editor/files/61536520505.pdfIn PDF document text
    • http://waetsukai.jp/system/ckfinder/userfiles/files/kasulokobadenidulane.pdfIn PDF document text
    • http://jyy.jp/ckfinder/userfiles/files/20220221_095258.pdfIn PDF document text
    • http://webs123.com/userfiles/file/jumupus.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/buxezi.pdfIn PDF document text
    • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/82999833205.pdfIn PDF document text
    • http://imhyuk.com/imhyukeditor/userfile/file/guvanu.pdfIn PDF document text
    • https://tortugafilms.ca/adminfiles/file/47821765294.pdfIn PDF document text
    • http://fapannimario.it/userfiles/files/39645978957.pdfIn PDF document text
    • https://fivetc.vn/uploads/files/lukexalotosulidemod.pdfIn PDF document text
    • http://rescue119.org/userfiles/file/penonivikipaxufejimezofim.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/58446484227.pdfIn PDF document text
    • https://www.kossuth-csepel.hu/inc/kcfinder/upload/files/27570868473.pdfIn PDF document text
    • https://fleuriste79.fr/ckfinder/userfiles/files/35516516943.pdfIn PDF document text
    • http://www.sec-ollivier-associes.fr/www/upload/file/risolekawu.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_off00031b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B92 19448 bytes
SHA-256: 04707f2f27da47489113a66cb786ca65befda75e90955645d0bd2c1500741a2a
font_01_sfnt_off00034ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34EC1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000365e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x365E1 10812 bytes
SHA-256: df88fe46e5bcc161df905754e9e06680a2b1ae7608925aff654d5a9903c59631

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