Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6324f08b77ffd4…

MALICIOUS

PDF

379.1 KB Created: 2022-03-04 07:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: f525cba03afa04ad82815509559ade0a SHA-1: d6876c85458d353ec5909225703215d3a0bf1c9a SHA-256: ca6324f08b77ffd4e6990956cbf9ad753b674a87ac98e582f12d185fe47c19c1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8109

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://yubit.co.za/XSRYdR1H?utm_term=fields+of+gold+classical+guitar+sheet+music PDF link annotation
    • https://zniczekowalczyk.com/user_images/file/65345172114.pdfIn PDF document text
    • http://studiopignotti.it/userfiles/files/suwurevifofij.pdfIn PDF document text
    • http://candleelectricals.com/uploaded_files/userfiles/files/mepofuzekakefivazezuxavuv.pdfIn PDF document text
    • http://cwsf2013.sfiab.com/data/userfiles/file/mitinepelevovisiw.pdfIn PDF document text
    • https://www.habitat-morvan.fr/ckfinder/userfiles/files/gozirip.pdfIn PDF document text
    • http://393citizen.com/upload/files/kaderesapeganawakujobi.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/20856187388.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/81947348347.pdfIn PDF document text
    • http://reversetheclocknow.com/ckfinder/userfiles/files/54044393609.pdfIn PDF document text
    • http://huarui-bio.com/upload/files/xabadebagigisurujumimo.pdfIn PDF document text
    • http://dribblebar.pl/userfiles/file/kimovidozizixezebiwazivez.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/34977635658.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/53130086912.pdfIn PDF document text
    • http://www.forsheda.se/admin/kcfinder/upload/files/jalagifupadisikuzilejog.pdfIn PDF document text
    • https://www.eclof.am/assets/ckeditor/kcfinder/upload/files/95630621182.pdfIn PDF document text
    • https://basisnomor.com/contents/files/34465477591.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201dea5baedd---38278388222.pdfIn PDF document text
    • http://crisismobile.com/ckfinder/userfiles/files/devemaxerom.pdfIn PDF document text
    • https://aimtronu.org/userfiles/file/pobofuzizewur.pdfIn PDF document text
    • https://civilkontroll.hu/uploads/file/kanawolidajebetop.pdfIn PDF document text
    • https://keuangan.artadev.com/assets/kcfinder/upload/files/faramatudirux.pdfIn PDF document text
    • https://rozetki.su/kcfinder/upload/files/zegok.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_off000580d9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000580d9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000580d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x580D9 16944 bytes
SHA-256: 9dc9bd417a0158a867c8b6dc28afa507cb56e10d7b8ee2b43aa5b862ec97f900
font_01_sfnt_off0005acf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACF5 10896 bytes
SHA-256: 04c6d22b037454ee9793717e96f7fd33f9dbefa18fc16d2c50d351039ca51783
font_02_sfnt_off0005c5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5F6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9