Malicious PDF — malware analysis report

Static analysis result for SHA-256 4505053ea8605a5b…

MALICIOUS

PDF

313.9 KB Created: 2022-03-10 02:01:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: d9f972618f2eacf55a78dfd3cbb1e307 SHA-1: 8523babfac510f2810d3e27a2a4a2ca43597c6a9 SHA-256: 4505053ea8605a5b33d2f534ef3cd6168ba31732bb0c811fe8c7f3b816884e2d
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5871

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://colod.co.za/XSRYdR1H?utm_term=sql+format+datetime+mm%2F+dd%2F+yy PDF link annotation
    • http://www.asbea.org.br/assets/plugins/kcfinder/upload/files/59441853047.pdfIn PDF document text
    • http://vps133.premo.at/userfiles/file/87484497630.pdfIn PDF document text
    • http://kunbot.com/upload/files/ratujuzesugirapotineriv.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/758c8d4147e33cf3801ee8d2e39d4bc7/roxebamuwatebogidiru.pdfIn PDF document text
    • https://alternativecarrepair.com/userfiles/file/kodoxo.pdfIn PDF document text
    • http://atthaya.com/file_media/file_image/file/55207499273.pdfIn PDF document text
    • http://palirna-frydek.cz/uploaded/file/vorilukaz.pdfIn PDF document text
    • https://lazerom.pro/media/file/vizeliwiwonumagesudatej.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620120dedf5df---ruxesemalokedaporuzole.pdfIn PDF document text
    • http://www.gastroblanik.cz/upload/files/25418731451.pdfIn PDF document text
    • http://gewald.ru/content/Files/64758758353.pdfIn PDF document text
    • http://cngwalk.com/fckeditor/userfiles/image/sazavisafelimewamuwam.pdfIn PDF document text
    • https://plentis.eu/ckfinder/userfiles/files/gaputejuwikemedabe.pdfIn PDF document text
    • http://chongthamnguoc.vn/img/files/30356850251.pdfIn PDF document text
    • https://digiconelectronics.com/media/wobejusazigabif.pdfIn PDF document text
    • https://generace89.cz/kcfinder/upload/files/pebadereregelunofawusono.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/nowuwo.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bvu/20220218/file/87848043681.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16205a127a701b---movubaju.pdfIn PDF document text
    • https://christavedelaar.nl/bestanden/files/japepivijuful.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/p2r28bgnqglp7ikse0nok1a713/vewakemepojuzati.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/2856f5a867bf7a105620e90839f2f6f0/10094686831.pdfIn PDF document text
    • http://hamzalegalservices.com/userfiles/file/naluzuvitarelasumu.pdfIn PDF document text
    • https://vinamex.info/uploads/news_file/nakepuzikuzulumisow.pdfIn PDF document text
    • http://cnokorea.com/userfiles/file/96640466295.pdfIn PDF document text
    • http://www.rbn.org.np/public/admin/plugin/kcfinder/upload/files/gakilawosodowuvatu.pdfIn PDF document text
    • http://www.negyen.com/admin/ckeditor/kcfinder/upload/files/boranaluluramewum.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/wapazujudad.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/21209604768.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/riwuvenugumasezotipigapov.pdfIn PDF document text
    • https://alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/xigamujegavovoxikudasis.pdfIn PDF document text
    • http://eepr.cz/upload/files/walidaxereborudemomaz.pdfIn PDF document text
    • http://cascad-trans.ru/files/betugurilefubutiweka.pdfIn PDF document text
    • https://ekinyalitim.com/depo/sayfaresim/file/gisuvexutosa.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/tesomutapeneta.pdfIn PDF document text
    • https://tobikam.com/userfiles/file/36611810266.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622666890280f---84698410714.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_off00045fdf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045fdf.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45FDF 20072 bytes
SHA-256: 4f0d890121e6269a9541d5ea8bfd2893bfced13098fbb789d224a43b1b03cee9
font_01_sfnt_off0004955b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4955B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004ac7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC7B 10612 bytes
SHA-256: 17c285db7cc3d10c44574ba783d6342f106f0d368a91df301a92ab1322976f5a
font_03_sfnt_off0004c4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4A1 5076 bytes
SHA-256: 92baee5f132666edcec3c8a4150c204bb0cb42b6bf4e59bf365e5b3db383e77f