Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a102ca41e13ce7…

MALICIOUS

PDF

457.3 KB Created: 2022-04-07 16:04:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 00e25972afa0a4e06d4435a88decb3d8 SHA-1: eb72ae767dd0295eef2864f65e7f499a3faefe33 SHA-256: 18a102ca41e13ce79c980ef72a18fe3026034e919b87dac4e75ce6876920bc4e
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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 http://a2kat.ru/userfiles/file/3879882839.pdf In PDF document text
    • http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/90896068241.pdfIn PDF document text
    • https://gutakabumediru.weebly.com/uploads/1/3/4/4/134492877/d5985126e5a.pdfIn PDF document text
    • http://miass.realxenon.ru/uploads/files/10397161613.pdfIn PDF document text
    • http://ventexevent.se/uploads/file/19555102502.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/25444488950.pdfIn PDF document text
    • https://esperidiaogomes.com/userfiles/files/xemipuzeruwezirakojux.pdfIn PDF document text
    • http://abbeloosschinkels.be/userfiles/file/35460659986.pdfIn PDF document text
    • http://tzsunup.com/upload/35528464648.pdfIn PDF document text
    • http://yds-wcv.jp/free_images/files/48632986422.pdfIn PDF document text
    • https://suxarunulabi.weebly.com/uploads/1/3/4/8/134854185/wowupen_leder_vadekurubirup.pdfIn PDF document text
    • https://kancelaria-wawrowska.pl/files/files/maleje.pdfIn PDF document text
    • https://www.danielbarboza.com.br/v2/meuAdmin/inclusos/plugins/ckeditor/plugins/kcfinder/upload/files/67725168897.pdfIn PDF document text
    • https://maxedojose.weebly.com/uploads/1/3/1/4/131452800/03e503cb5.pdfIn PDF document text
    • http://akademia-jedenastka.pl/zdjecia/fck/file/79605882082.pdfIn PDF document text
    • http://roberlo.cz/www/files/file/11442241462.pdfIn PDF document text
    • https://bulejoge.weebly.com/uploads/1/3/0/7/130775594/6116548.pdfIn PDF document text
    • http://zartmobilia.com/userfiles/file/20220302213725.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/7528016.pdfIn PDF document text
    • https://zutuvolesem.weebly.com/uploads/1/3/0/7/130775525/aff1cfc.pdfIn PDF document text
    • http://eshop-kocicinadeje.cz/files/file/xizabegoxetalaxo.pdfIn PDF document text
    • https://nawowelefet.weebly.com/uploads/1/3/4/4/134498780/52cdeea3bc6.pdfIn PDF document text
    • http://melodylavernebettencourt.com/media/file/kovevenozemoromakerawatum.pdfIn PDF document text
    • https://kegewibenufugix.weebly.com/uploads/1/3/2/6/132682471/venomafaxi-setapalexe-lojalu.pdfIn PDF document text
    • https://dimazupaw.weebly.com/uploads/1/3/2/8/132814154/199c19b5d94.pdfIn PDF document text
    • https://infypos.com/infyposcms/media/dafuzipidugekixomunemepag.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/dapebezemalavil.pdfIn PDF document text
    • https://bkr.jetdesign.pl/files/files/96973518768.pdfIn PDF document text
    • https://kazajiti.weebly.com/uploads/1/3/4/4/134456981/2108285.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/36741704961.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=libros+en+ingles+pdfPDF link annotation
    • http://sherry-japan.com/uploads/files/vavojabavadedopozas.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_off0006b0d5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006b0d5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006b0d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D5 10508 bytes
SHA-256: 55be28d2552e47f0152162ce6ed257214bb399981ce4f3d70ee27c31c5678a72
font_01_sfnt_off0006c850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C850 20384 bytes
SHA-256: 3bea40eb4a5d74d55330a6280f1b2b5374593bbc580d0c1b5a2ad07ba377dc77
font_02_sfnt_off0006fc2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC2D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1