Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c1bfc5726a9163…

MALICIOUS

PDF

443.8 KB Created: 2022-02-25 07:53:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: b9753cca80a673e385939f03c5e50aa0 SHA-1: 99f1efce9067ce9d19c710f580e0cc52759475f4 SHA-256: 25c1bfc5726a916354ff7b3607e08fabb436ddd58768e59c60cf58f4576fbbea
161 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4050

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://lovig.co.za/XSRYdR1H?utm_term=malayalam+hd+movies++tamilrockers PDF link annotation
    • https://www.csorog.hu/kcfinder/upload/files/11124267417.pdfIn PDF document text
    • https://cursosadistanciayonline.com/medios//files/fifaritizij.pdfIn PDF document text
    • http://grandioso.asia/editor_upload_image/file/raveta.pdfIn PDF document text
    • http://linyuepharm.com/upload/files/najonidas.pdfIn PDF document text
    • http://orsini-blasioli.it/userfiles/files/81892619388.pdfIn PDF document text
    • http://tygodnikzuzlowy.pl/ckfinder/userfiles/files/81179779965.pdfIn PDF document text
    • https://oolong-dining-co.com/webroot/editor-uploads/files/6984449309.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/16265791306.pdfIn PDF document text
    • http://banquat.com/userfiles/files/daxeparusufulasiw.pdfIn PDF document text
    • https://inprovitcentroamerica.com/ckfinder/userfiles/files/9652595698.pdfIn PDF document text
    • https://listapp.in/ci/userfiles/files/wulojowepowesute.pdfIn PDF document text
    • http://e-hematologica.com/users/file/64899190500.pdfIn PDF document text
    • https://pisausakti.com/contents/files/nibazakotanapedonuwur.pdfIn PDF document text
    • http://eshs.cz/www/kcfinder/upload/files/vepogedowagububepuzi.pdfIn PDF document text
    • https://biomisszio.hu/tmp/8480057858.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/27888206443.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/161af970563c64---28723975730.pdfIn PDF document text
    • https://medicentrumnz.eu/medicentrum/files/file/jagijipexefij.pdfIn PDF document text
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/d3059217f1693a315b331672eadf3519/43446972637.pdfIn PDF document text
    • https://charteriraq.ir/basefile/charteriraqir/files/81944836715.pdfIn PDF document text
    • http://toszegisuli.hu/userfiles/file/kifepegolasuwerovid.pdfIn PDF document text
    • http://instalace-charvat.cz/userfiles/file/xalojexejigebi.pdfIn PDF document text
    • http://stluciachamber.org/uploadedImages/contentImg/file/wodewepurapu.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155a670df32b---wibogiguripimufiroduje.pdfIn PDF document text
    • http://slsnn.ru/content/files/24284123321.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16208644806cf0---94043268731.pdfIn PDF document text
    • https://naturecare.com.au/kcfinder/upload/files/fofovutefadabatokefanib.pdfIn PDF document text
    • https://bakkerijkamstra.nl/userfiles/files/62003018118.pdfIn PDF document text
    • http://sccsfz.org/upload/35040291493.pdfIn PDF document text
    • http://scro.ru/pic/file/bigexe.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/44059940302.pdfIn PDF document text
    • http://kasand.com/userfiles/63360934647.pdfIn PDF document text
    • https://menuiserie-sainte-anne.fr/userfiles/file/bizevawawunemowunowo.pdfIn PDF document text
    • http://klwas.org/userfiles/images/file/zakizepidesuwafi.pdfIn PDF document text
    • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/xisafekakujigazimuwizoj.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/161c7698a8d1b9---82574152762.pdfIn PDF document text
    • https://paperland.bg/uploads/file/xanasuvejipixosinedobe.pdfIn PDF document text
    • http://ewtch.com/upload/files/82884572856.pdfIn PDF document text
    • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/filobetigenikalakomaradaw.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_off00067b8d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00067b8d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B8D 10796 bytes
SHA-256: 600bbfb46acc7b9c91e7fe34d31932cd18de3c5df77854ca886c9dbb918d7fcc
font_01_sfnt_off0006947d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6947D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006ab98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB98 19680 bytes
SHA-256: b6546cccad95d5f6d435e7024160ab15cb6b3bffee49a078de52c5f296a8edcf