Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8d787a30d5f4aa…

MALICIOUS

PDF

341.5 KB Created: 2022-03-10 16:44:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 99d0969377178da21498104dba0cbf74 SHA-1: b6f04c4842fb4b581f017ab7b4d644a35427fb73 SHA-256: 2c8d787a30d5f4aa5a381dcc2773b05f827fb4f8dc626d0e8251ad1c0be75ba8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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://tevav.co.za/XSRYdR1H?utm_term=reading+comprehension+worksheets+for+preschoolers PDF link annotation
    • http://chatyzvule.cz/uploads/47618439156.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/7eabc12f141f80929a431d72e37bd8d5/vorotowijowidivifaroxu.pdfIn PDF document text
    • http://nebodom.com/userfiles/file/juwenizike.pdfIn PDF document text
    • https://rosedreamholidayhomes.com/ckfinder/userfiles/files/nerar.pdfIn PDF document text
    • https://equantumconsulting.com/files/files/xidaxetomodu.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/20944361145.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/pulokedilibigurimidexobiw.pdfIn PDF document text
    • http://defendo.hu/admin/kcfinder/upload/files/kegezekovowisus.pdfIn PDF document text
    • http://honmamon-s.com/img_seminar/userfiles/file/85261344485.pdfIn PDF document text
    • http://vucert.vn/uploads/files/82263113962.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/162071aeecca3c---timirilomiwuxuz.pdfIn PDF document text
    • http://www.farmaciabergua.com/userfiles/files/79719253124.pdfIn PDF document text
    • https://ij-ph.com/admin/SchoolFiles/files/gisanu.pdfIn PDF document text
    • http://retrolondontees.com/userfiles/file/pimiviwivoxalisunajeri.pdfIn PDF document text
    • http://imcet.org.tr/kcfinder/upload/files/70981172116.pdfIn PDF document text
    • http://videofilm-tv.ru/content/File/mavorukegexagemonopurawur.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162064677c9528---bemofide.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/luxipateva.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/56995b898d9fad5f9221175c4c13955e/60640764396.pdfIn PDF document text
    • http://yarpb.ru/pic/userfile/wuvubedirusumabiwufovuxef.pdfIn PDF document text
    • http://playbabydoll.com/userfiles/file/52243831485.pdfIn PDF document text
    • http://wieswioska.pl/userfiles/file/gilupek.pdfIn PDF document text
    • https://cicimanis.com/contents/files/69876485503.pdfIn PDF document text
    • https://pmayassam.in/assets/kcfinder/upload/files/56740679838.pdfIn PDF document text
    • http://gaudi.tw/upload/file/63708147703.pdfIn PDF document text
    • http://masterref.ru/editorfiles/file/9071417633.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/linifavexitidaxidoduzul.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620e5f543b1ff---jetagunezexejatuxajukotu.pdfIn PDF document text
    • https://hotelite.in/userfiles/file/65021885810.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/pogivugaluzonadaxamakipir.pdfIn PDF document text
    • http://krattenreiniging.nl/media-upload/files/mezegaxalajanagi.pdfIn PDF document text
    • https://kultmotor.virtualbodybuilding.hu/images/files/93325107485.pdfIn PDF document text
    • https://bagstyle.uz/images/file/90604937459.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620503c2d1290---bikugexofebin.pdfIn PDF document text
    • http://onlinetalk.jp/app/webroot/img/fckfiles/file/32498869109.pdfIn PDF document text
    • http://clingac.es/d/files/19824001174.pdfIn PDF document text
    • https://bank-kredit.at/ckfinder/userfiles/files/97747904556.pdfIn PDF document text
    • https://transilvaniafishing.ro/app/webroot/files/userfiles/files/lolofobarafex.pdfIn PDF document text
    • https://www.drukwerkmax.nl/public/admin/assets/global/plugins/kcfinder/upload/files/70050368025.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E4AE 11288 bytes
SHA-256: 37b7f709c36bda3ab46958d5db3137d71e8d3720289d3399be94cb046ba3a3ad
font_01_sfnt_off0004fece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FECE 18344 bytes
SHA-256: 279e1bae57d9f04da292adf747f9db6eec5603ab2c93529a62d28df131d1c3dd
font_02_sfnt_off00052e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E6C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9