Malicious PDF — malware analysis report

Static analysis result for SHA-256 b616672f6da30d8a…

MALICIOUS

PDF

304.7 KB Created: 2022-03-01 07:01:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: ee36c27e982c1776a458476fd2e00037 SHA-1: 1b2954ff0ef2dbc4dbd64ed8e3f9428cba3081b2 SHA-256: b616672f6da30d8a84754fc6216010a8a1ea3603984e3104eeea8c37a42a78b1
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6043

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 http://doicoffee.co.jp/js/kcfinder/upload/files/87294906165.pdf In PDF document text
    • http://transfertrolley.cn/d/files/39149130206.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/10484021665.pdfIn PDF document text
    • http://qts.pandae.biz/views/images/sign/file/varizakewira.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/1631c540f7050c6958d76e39827fc8b8/rulopemitonufitapiledupo.pdfIn PDF document text
    • https://exam11.menapoint.com/app/webroot/upload/files/popejote.pdfIn PDF document text
    • https://loctra.net/userfiles/file/lobuputofe.pdfIn PDF document text
    • http://bahiratpatil.com/kcfinder/upload/files/7331598636.pdfIn PDF document text
    • https://speakingparrot.com/upload/ckfinder/files/wufotakelu.pdfIn PDF document text
    • https://communicationscharlevoix.com/admin/kcfinder/upload/files/58237488385.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2022-2-18/20220218044549698653.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe7f2c6ccb7---vodedosa.pdfIn PDF document text
    • https://candica.pl/ckfinder/userfiles/files/7945504524.pdfIn PDF document text
    • http://appextskihjthj.handysociality.com/upload/files/48303475846.pdfIn PDF document text
    • http://cftckr.marketsearching.com/upload/files/19016724037.pdfIn PDF document text
    • http://improntediteatro.it/userfiles/files/27542943751.pdfIn PDF document text
    • https://prettygreekvillas.com/admin/fckeditor/editor/filemanager/connectofile/6702054977.pdfIn PDF document text
    • http://garoli.com.br/js/kcfinder/upload/files/68312018331.pdfIn PDF document text
    • http://lifecontinues.ru/images/files/mesizepoxolu.pdfIn PDF document text
    • http://dothimau.vn/kcfinder/upload/files/92160557731.pdfIn PDF document text
    • http://www.angels-rest.es/ckfinder/userfiles/files/saxevolunofivuxowarep.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1644204405_4ac0d79bfb.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/88770111579.pdfIn PDF document text
    • https://lidiyageorgieva.com/ckfinder/userfiles/files/xatam.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620688d63e08b---85262796729.pdfIn PDF document text
    • http://ilkjv.com/Images/Media/files/95445179698.pdfIn PDF document text
    • http://poliman.srv.br/assets/kcfinder/upload/files/fabolor.pdfIn PDF document text
    • https://beyondpins.com/calisma2/files/uploads/gibotapenab.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/97097247042.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b0108e90b6---desabe.pdfIn PDF document text
    • http://colonia-hausmeister.de/uploads/files/numupo.pdfIn PDF document text
    • https://synodradomski.pl/userfiles/file/dopirexufokomi.pdfIn PDF document text
    • http://kythuatviet.vn/uploads/userfiles/file/81402699162.pdfIn PDF document text
    • http://borsasetelsis.cat/admin/kcfinder/upload/files/mujeseruvesonugizorakofo.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620096f50bd6f---87807478982.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/rufad.pdfIn PDF document text
    • http://vasudevindustries.com/userfiles/file/76429702838.pdfIn PDF document text
    • https://fenicia.uy/fenicia.com.uy/uploads/files/367738185.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/wusotowowel.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=cara+update+android+asus+zenfone+5qPDF 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_off00044810.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044810.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44810 10916 bytes
SHA-256: 5fcf943e7f65244e5ceb05babb54b9dec39dc63f0c3fead85c746ca4058332ae
font_01_sfnt_off00046159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46159 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00047874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47874 21416 bytes
SHA-256: ea81774f4de200c5f0c0f8d03310bdf851eba5beb6fbbabb9f036849d6facb1e