Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c60a4c52edc503d…

MALICIOUS

PDF

271.4 KB Created: 2022-03-25 23:50:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 6910165b8112b411b6a959d5d0e6d0f0 SHA-1: 6510fb1f1fba291240c503e3ff504e82bba8bfc0 SHA-256: 6c60a4c52edc503d3f73d07d28b1a8a135e361968c3654d1ae8cf629c8ba13b7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8053

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 https://pernambucoimortal.com/imagens/files/buvilurumirefinewojaju.pdf In PDF document text
    • https://www.worldpco.org/includes/js/ckeditor/kcfinder/upload/files/82822004791.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/3263746631.pdfIn PDF document text
    • https://www.swaraagmusic.com/public/templateEditor/kcfinder/upload/files/fakikavetesota.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/e4f24bf5541c90de24f83de19aabb843/balutatalolinen.pdfIn PDF document text
    • http://imssp.by/data/images/fxeditor/file/74070192619.pdfIn PDF document text
    • https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/jinomaritagejig.pdfIn PDF document text
    • https://ceramicasvillaflor.cl/UserFiles/File/92633072996.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1620ae5bec193f---56303724396.pdfIn PDF document text
    • http://sadbaindia.org/admin/kcfinder/upload/files/29025749091.pdfIn PDF document text
    • http://andrenickels.de/ckfinder/userfiles/files/baxusosubavegebamiwabobuz.pdfIn PDF document text
    • https://lmbri.com/WYSIWYGImage/file/pujakiboposodu.pdfIn PDF document text
    • http://ipceurope.eu/assets/file/39831339693.pdfIn PDF document text
    • http://sinching.com/uploadpic/files/202203050354433417.pdfIn PDF document text
    • http://geometrarontani.it/userfiles/files/83884929777.pdfIn PDF document text
    • https://rubin2000-distribuitorshop.ro/userfiles/file/vawogokogujewazide.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/1f6d6bfd19c77c8ae038c7fa47997e53/60265579789.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/fokaxubimuxosesikutobu.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/70492338696.pdfIn PDF document text
    • https://embassyinvietnam.com/webroot/img/files/14624773750.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16215b8a125498---vedarolusagogepugadi.pdfIn PDF document text
    • http://simonova-zahrada.cz/ckeditor/kcfinder/upload/files/11981612659.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=acknowledgement+for+project+report+pPDF 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_off0003cdaa.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003cdaa.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003cdaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CDAA 18788 bytes
SHA-256: 8d14d64be35bf931e9884f02d14a4857e8a91fe499d19cce68dab339ea7abd7d
font_01_sfnt_off0003fea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FEA1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000415c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x415C1 10832 bytes
SHA-256: 34823ea53ed646705eaa7ade8f3cd4b867633aa64441fb4dc5bd917a9797818e