Malicious PDF — malware analysis report

Static analysis result for SHA-256 9adfb51a15e26317…

MALICIOUS

PDF

494.5 KB Created: 2022-03-19 00:44:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: 44841e046d315de3c2271bda8d1412a1 SHA-1: 9823fe5f8a1c1889ac4cf2656b4fd5e9c0524bc7 SHA-256: 9adfb51a15e26317f38a73c694fb2e221a8a6712cdf148351114d8d2e5592d92
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4051

Heuristics 6

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xn--h1aaebajlcgx.xn--p1ai/sadm_files/79871322835.pdf In PDF document text
    • https://www.eclof.am/assets/ckeditor/kcfinder/upload/files/55159383228.pdfIn PDF document text
    • http://gtlitalia.com/userfiles/files/xalazasifuviruligowerege.pdfIn PDF document text
    • https://2acontractor.it/images/file/dupisazuvenenamomim.pdfIn PDF document text
    • http://anquocrealty.com/uploads/image/files/58211320329.pdfIn PDF document text
    • http://ranchobg.com/img/file/82916119939.pdfIn PDF document text
    • http://nuitsdartistes.eu/images/file/vekujazigepazabu.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162089392a193e---bumozowazoresenefi.pdfIn PDF document text
    • http://wabasnb.com/files/fckeditor/file/40488715620c85876a22b.pdfIn PDF document text
    • https://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/75595226378.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/a3rukn8jvpig3culcj3cuk8r4o/polupaj.pdfIn PDF document text
    • https://hainescentreasia.com/images/file/jupesududusimopuka.pdfIn PDF document text
    • http://klavierunterricht-bergedorf.de/files/files/34834111350.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16210ee8b59545---jetaravusunifaginun.pdfIn PDF document text
    • http://selfmadefilms.nl/userfiles/files/476336505.pdfIn PDF document text
    • http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/demoki.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/75306138022.pdfIn PDF document text
    • http://xn--q20b13r9leepaeb.net/upload/file/202203061612484824.pdfIn PDF document text
    • http://afrodiva.communication-pro.fr/public/846/contenu/file/23861511814.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/18790577405.pdfIn PDF document text
    • http://sieuthiduanbds.com.vn/kcfinder/upload/files/jububeniduziresonadu.pdfIn PDF document text
    • http://dirpub.org/editor/ckfinder/userfiles/files/81108852615.pdfIn PDF document text
    • http://ellipsisnovel.com/file_space/files/72725814236.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/162186ed66fc09---xazeleroterapelomor.pdfIn PDF document text
    • http://thetestmag.com/userfiles/files/sonag.pdfIn PDF document text
    • https://giltmorestukko.hu/ckfinder/userfiles/files/dofibuvoralavigaguzi.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/wanemibimuji.pdfIn PDF document text
    • http://artpolinakuzina.ru/pict/file/93081271159.pdfIn PDF document text
    • http://usneseni.eu/foto/image/files/dedudilomijuzawonisaso.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/jesiturajopus.pdfIn PDF document text
    • https://zohopinler.com/calisma2/files/uploads/mejedixu.pdfIn PDF document text
    • https://gulecbakliyat.com/panel/kcfinder/files/fonazebewedaxi.pdfIn PDF document text
    • http://www.mattig-accounting.bg/fisiere/file/22321546375.pdfIn PDF document text
    • http://gld-lining.com/user_img/files/fulage.pdfIn PDF document text
    • https://ngusacdon.com/upload/files/29130773838.pdfIn PDF document text
    • http://architettogherardi.eu/userfiles/files/82630508893.pdfIn PDF document text
    • https://doktor-ara.com/userfiles/files/mevanujapusubewow.pdfIn PDF document text
    • http://nm-union.ru/ckfinder/userfiles/files/vetela.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=valentine+day+2019+images+hdPDF link annotation
    • https://kpk.1c.ru/admin/rc/ckeditor/kcfinder/upload/files/36029725795.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_off00074854.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00074854.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00074854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74854 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00075f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F6F 18700 bytes
SHA-256: 75f203cd07c4960f87cb7b980213bc92722ee783df6ccdeac55742f33112b521
font_02_sfnt_off00079034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79034 11020 bytes
SHA-256: 1127fa3a6c8251adceada250f94403087c20b852979413f6c879bce814cb4385