Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a847f78b9f34ef…

MALICIOUS

PDF

515.0 KB Created: 2022-03-05 13:47:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 51af70b5d2b65eb0a2b77e7095c7d855 SHA-1: 3e70f5cc0c9e7a0b735cb9d364dad1d6eefffc54 SHA-256: 18a847f78b9f34efdd9b588535cff39bd76df7863640ef6ddca8b9cc8c5be03e
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4301

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://wirut.co.za/XSRYdR1H?utm_term=amelia+bedelia+books+pdf PDF link annotation
    • http://ridonhennet.eu/admin/kcfinder/upload/files/dijozawigunoxugarofega.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/bulawasikavif.pdfIn PDF document text
    • http://fazendasaojudastadeu.net/fotosempresa/files/37005763251.pdfIn PDF document text
    • http://icloudcleaners.com/uploads/account/autoresponderfiles/dejemipeperob.pdfIn PDF document text
    • http://i-mag-ine.com/media/files/27950954218.pdfIn PDF document text
    • https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/xivoriduferedutufatik.pdfIn PDF document text
    • http://cwesp.biz/upload/file/21034320230.pdfIn PDF document text
    • https://collinite.pl/userfiles/file/86092826150.pdfIn PDF document text
    • https://kvkumariajnkvv.org/singhania/downloads/file/25877000024.pdfIn PDF document text
    • http://zhfangyuan.com/uploadfiles/files/55715386807.pdfIn PDF document text
    • http://www.politico.cnm.org.br/ckeditor_custom/kcfinder/upload/files/patinopemijuwolu.pdfIn PDF document text
    • http://nabavke.beoelektrane.rs/files/26172173107.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/329274528621d0a7120c3c.pdfIn PDF document text
    • http://africareview.in/userfiles/file/buvipat.pdfIn PDF document text
    • http://andersen-racing.com/pictures/editor/files/39683869390.pdfIn PDF document text
    • http://diamant-x.sk/UserFiles/file/womupovote.pdfIn PDF document text
    • https://unstitchedutilities.com/files/file/60871688929.pdfIn PDF document text
    • http://xy-interior.com/uploads/files/202203040402095858.pdfIn PDF document text
    • http://kondicionery-noginsk.ru/upload_picture/file/lapukenux.pdfIn PDF document text
    • http://bscartridge.com/pic/96828683812.pdfIn PDF document text
    • https://mannlicher.hu/admin/kcfinder/upload/files/galodalapadoz.pdfIn PDF document text
    • http://riverla.vn/uploads/userfiles/file/29511317919.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/60399784934.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1620d8146d2a47---61688250072.pdfIn PDF document text
    • https://firstview.christoff-design.com/files/bugefijemebonegefof.pdfIn PDF document text
    • http://www.sloepverhuur-debiesbosch.nl/upload/files/1210764190.pdfIn PDF document text
    • http://xageunion.com/userfiles/file/gufodabikejororovalewawis.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1622113d1bdc73---70473806729.pdfIn PDF document text
    • https://remini.hu/userfiles/file/fumezomakat.pdfIn PDF document text
    • https://www.procotech.be/ckeditor/kcfinder/upload/files/58937510343.pdfIn PDF document text
    • http://hosungtour.com/FileData/ckfinder/files/20220209_7DEAB723DFD613FD.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_off00079de2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00079de2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00079de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE2 18480 bytes
SHA-256: 1612a466e4e46e9717adb101a792a3032c838def1f1508effded058fd6ae9f3c
font_01_sfnt_off0007cd7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD7F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007e49f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49F 10568 bytes
SHA-256: 59c1354445a0d9fd2f02d830e4616ad18d069679c9e37fe899aea30550965757