Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f674b6683440025…

MALICIOUS

PDF

329.6 KB Created: 2022-02-27 01:32:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 50f0f9d20c9af04e5a0a98ff4874ab1e SHA-1: dd724d843df053cdc508257ffdfefd0af1c7a676 SHA-256: 8f674b6683440025db4a016af7561d39d83218a0225174f4b3757f059a8e466d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7833

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://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/4cf77fbf9ab5d089660b48fd4942f9fb/naganikobokojikof.pdf In PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/89dd4402d3f7a08318c4d42888f1b25c/2434895661.pdfIn PDF document text
    • http://hosungtour.com/FileData/ckfinder/files/20211129_932BBBE33CE34B0D.pdfIn PDF document text
    • http://laserinnsbruck.com/static/dopazogo.pdfIn PDF document text
    • http://ps-chiptuning.hu/userfiles/files/jumefonibosifivijawa.pdfIn PDF document text
    • https://felicitareonline.ro/ckfinder/userfiles/files/fudesutetozideragofu.pdfIn PDF document text
    • http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/11968252440.pdfIn PDF document text
    • https://newcar-rental.com/uploads/files/202109012321329682.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a229785fde3---89817730068.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/js6rpa3pkhrlg7jhcmcfbcfu7l/nametusexofafotovo.pdfIn PDF document text
    • https://orangcar.com/app/webroot/upload/files/9880815545.pdfIn PDF document text
    • https://gad-elhak.com/userfiles/file/41402919083.pdfIn PDF document text
    • http://vandervalk.reviews/app/webroot/files/userfiles/files/56697613686.pdfIn PDF document text
    • https://baust.edu.bd/app/webroot/ckfinder/userfiles/files/fisevala.pdfIn PDF document text
    • http://kool-house.com/upload/editor/file/50546008897.pdfIn PDF document text
    • http://elazentrale.de/images/uploaded/file/8287824522.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/6eba21fd0aca6a02353d3ede11ff9f4a/13624663954.pdfIn PDF document text
    • https://netron.pt/app/webroot/media/files/molorudokawinalixilowapiw.pdfIn PDF document text
    • http://farmaciafasolis.eu/userfiles/files/31623261148.pdfIn PDF document text
    • https://corcreation.twbiz.me/data/fckeditor/files/20220116_202139.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=company+letterhead+sample+pdfPDF link annotation
    • 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_off0004a298.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a298.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A298 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off0004b89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B89A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004cfba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CFBA 10816 bytes
SHA-256: 6ca31056fb10ad0f61a14e8415153a45d68a22256471be99b882a2c58865c2fb
font_03_sfnt_off0004e882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E882 17936 bytes
SHA-256: a1ff55ecd966e58344c07b106cbc57a9f62f453f207d9593bae10004550f5a41