Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b67a585b1c9e34…

MALICIOUS

PDF

343.2 KB Created: 2022-02-13 10:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 895d5f662134f6b41d49bd1850af539b SHA-1: 0b96e6d956d029e07bcf3404ee08f43b4720e5be SHA-256: 72b67a585b1c9e34d2294630a53f31daa8b4665e62a52d3cf8159e54c725c25a
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=easy+video+player+android+example PDF link annotation
    • http://asijskepotraviny.cz/files/file/votodaluf.pdfIn PDF document text
    • https://toscanafantastica.com/userfiles/file/29272071478.pdfIn PDF document text
    • http://ambulatorioveterinariosantanna.eu/userfiles/files/jidafum.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e038d33902fe8a5274e423bfb7b7ba9e/93479199409.pdfIn PDF document text
    • https://congnghiepxd204.vn/upload/files/89842530269.pdfIn PDF document text
    • http://kuppersbusch.hu/userfiles/files/pajeme.pdfIn PDF document text
    • http://nguoigiupviec99.com/webroot/img/files/xagifajegelurivaze.pdfIn PDF document text
    • http://mvpvo.ru/userfiles/file/godosuvokonune.pdfIn PDF document text
    • https://harrisitalia.it/uploads/file/lorusadivojo.pdfIn PDF document text
    • https://firstview.christoff-design.com/files/41896755845.pdfIn PDF document text
    • https://at-studio.tw/app/webroot/userfiles/files/20210720_183610.pdfIn PDF document text
    • http://oticonshop.net/ckfinder/userfiles/files/11908044160.pdfIn PDF document text
    • https://artenika.pl/fck/file/59021953888.pdfIn PDF document text
    • http://tearose-kitchen.com/sites/default/files/images/imcefile/6856509464.pdfIn PDF document text
    • http://tms-technology.com/ckfinder/userfiles/files/92171579050.pdfIn PDF document text
    • https://rent-1.es/ckfinder/userfiles/files/faxavot.pdfIn PDF document text
    • http://assessmentinsight.com/ckfinder/userfiles/files/64290426809.pdfIn PDF document text
    • https://usgcambodia.com/userfiles/file/pofiputijilaji.pdfIn PDF document text
    • http://ctyhoalinh.com/media/ftp/file/15973569949.pdfIn PDF document text
    • http://ttccid.com/userfiles/files/wuremidutet.pdfIn PDF document text
    • https://rugsinc.in/UserFiles/files/29725206373.pdfIn PDF document text
    • http://rw-hse-businessconsulting.de/userfiles/file/gazuradavopakaja.pdfIn PDF document text
    • https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/28977564914.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_off0004ebd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBD9 19080 bytes
SHA-256: de13c822f05adaff7b6e32cdf1945adf2dba249e7e7803553cd0e78fc8e14656
font_01_sfnt_off00051ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51EC2 10720 bytes
SHA-256: 7287715c54ed1957789c5bace88c26566129c871feda6c5ff2e7f2e2e8e9918f
font_02_sfnt_off00053754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53754 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9