Malicious PDF — malware analysis report

Static analysis result for SHA-256 42590084670f5efc…

MALICIOUS

PDF

413.6 KB Created: 2022-02-08 02:46:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 109020f4b531c912390c48d6e87b084f SHA-1: 436e7c6a7bbcae2a0b46fd94623972c3b5f0fc37 SHA-256: 42590084670f5efc29610a8d04a57f516dddd5036a2fca305d048639fff8a489
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5044

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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 https://loheb.co.za/XSRYdR1H?utm_term=behind+enemy+lines+1997+full+movie PDF link annotation
    • https://badanie-wody.pl/galeria/file/93221119052.pdfIn PDF document text
    • https://ceral.pl/ceral/pliki/file/60494864261.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16147b49c5f782---52164548045.pdfIn PDF document text
    • http://rovitek.com/userfiles/file/fefebo.pdfIn PDF document text
    • http://ranjitabiswas.com/userfiles/files/16787963257.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614b0ecb52b3a---loxoxelikag.pdfIn PDF document text
    • http://hzhuacui.com/images/upload/File/xuzatuworipopa.pdfIn PDF document text
    • http://1mosref.ru/ckfinder/userfiles/files/99425792322.pdfIn PDF document text
    • http://soles2walk.cz/data/file/zelavodesafewapuzuruvite.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16195ac310499d---zosovuxufi.pdfIn PDF document text
    • https://myclubowners.com/userfiles/files/jiveku.pdfIn PDF document text
    • http://www.gpkoaee.ru/ckfinder/userfiles/files/15652443082.pdfIn PDF document text
    • https://h1t-urlaurora1-turbo.com/contents/files/71612918753.pdfIn PDF document text
    • http://www.ciesol.com/ckfinder/userfiles/files/fuwopad.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/9432221629.pdfIn PDF document text
    • https://3rproject.eu/ckfinder/userfiles/files/fumugufugu.pdfIn PDF document text
    • http://vetusmeter.com/images/upload/File/komiko.pdfIn PDF document text
    • https://bloc-immo.com/images/fuguxixixanibonuwikoti.pdfIn PDF document text
    • http://virus-safe-zone.com/ckupload/files/gipegexerumasomob.pdfIn PDF document text
    • http://walosports.cl/userfiles/file/24802454133.pdfIn PDF document text
    • http://chochosanencino.com/uploads/files/44196274142.pdfIn PDF document text
    • http://zzquansu.cn/d/files/45242014478.pdfIn PDF document text
    • https://apotekatia.ba/fajlovi/91089660080.pdfIn PDF document text
    • https://thefashion.asia/admin/kcfinder/upload/files/3405375218.pdfIn PDF document text
    • http://gardensyellowcab.com/admin/images/file/jutowojefojajirezoposor.pdfIn PDF document text
    • https://heyratacademy.ir/file/fapogivoxikajutibosolalil.pdfIn PDF document text
    • http://honghuibio.com/d/files/nozugojaj.pdfIn PDF document text
    • http://vivaibonomo.it/userfiles/files/kuduzokilejoxiwepitizaro.pdfIn PDF document text
    • https://dveropolis.ru/upload_picture/46078262694.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tnpp3678etupfcbkcqc986r2b1/zinukove.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cd2ae4e2e1d---21876159393.pdfIn PDF document text
    • http://skolicka.eu/foto/images/file/pufasejozesotesumegobid.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1d7db34ae2146ced8fdd00cdbd834685/pajoj.pdfIn PDF document text
    • http://wwstationery.com/files/file/rivutojedikokepobeb.pdfIn PDF document text
    • http://feach.ie/images/uploads/file/gijewesiruf.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_off0006088e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6088E 10860 bytes
SHA-256: c81b35093dee449f090e9189a06fad952cf109866640597735b824b3158eb822
font_01_sfnt_off00062199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62199 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000638b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638B4 17468 bytes
SHA-256: dfdc5c076e99dcf37e9ba058459b74e7b5ac601f3be9efef54f9e467649e3699