Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3a858c9f29ac12…

MALICIOUS

PDF

324.2 KB Created: 2022-02-05 20:09:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: caeb87571c0e2a699e2ffc052e5bc8c2 SHA-1: 80ec5747e3f09f34a6a5e19a396eaa58cb466d83 SHA-256: ed3a858c9f29ac12cf4092a0f6855f8c41d9e8ae740e4bba50991848e2bef0d7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6934

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://norin.co.za/XSRYdR1H?utm_term=unfamiliar+words+using+context+clues+worksheets PDF link annotation
    • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/62489941774.pdfIn PDF document text
    • https://hondaotohaiphong.vn/upload/files/77177125948.pdfIn PDF document text
    • https://hairidol.isme.us/images/file/68410946741.pdfIn PDF document text
    • http://studiocariola.com/userfiles/files/22124022389.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/23294447771.pdfIn PDF document text
    • http://hunicorn.hu/userfiles/file/fetoriviwexogaxalenegewef.pdfIn PDF document text
    • https://xn--23-6kci4asohe8k.xn--p1ai/userfiles/file/wozugijiganalujejofuzos.pdfIn PDF document text
    • http://poetische-malerei.de/web/editor/files/rinupukometizaruti.pdfIn PDF document text
    • http://thietbimaugiao.vn/Images_upload/files/towegekagutegupipez.pdfIn PDF document text
    • http://sola-brothers.com/userfiles/file/pikosurulodej.pdfIn PDF document text
    • https://invest.pl/userfiles/file/naworajeb.pdfIn PDF document text
    • https://agmatbaa.com/upload/files/diwogom.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/d05f519e367c665ff0ad7294f2acd0b5/90651296015.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161e4625d0d4ea---tavenobasugetoko.pdfIn PDF document text
    • http://tandartsindex.nl/images/uploads/jobofiludagubavemebat.pdfIn PDF document text
    • http://mathcountsoutreach.org/userfiles/file/zigoxov.pdfIn PDF document text
    • http://miskolciharsona.hu/pictures/file/81419217933.pdfIn PDF document text
    • http://roletyhanarol.pl/files/file/sanolifesokitaxakavo.pdfIn PDF document text
    • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/25334859677.pdfIn PDF document text
    • http://quaisetoiles.fr/img_pages/file/sapovisipatoxaki.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/0bff2eaf4ee239a2a3bf7fd77beba91e/68057153787.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/17303235623.pdfIn PDF document text
    • https://sads.sk/admin/ckeditor/kcfinder/upload/files/gidezazevosozonu.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161b0d2b85555c---sadenuxezetanowepu.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/de7d858bf41df3d7fc5db23943bfb6f1/bumizurowikukomolovazalog.pdfIn PDF document text
    • https://biorenta.lt/ckfinder/userfiles/files/99234094410.pdfIn PDF document text
    • http://doremimarlikinsaat.com/userfiles/file/90969646016.pdfIn PDF document text
    • http://elitakhealing.com/ckfinder/userfiles/files/raveferepotasekozoxufusi.pdfIn PDF document text
    • http://someteme.com/archivos/_20211019221937.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_off0004a420.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a420.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A420 16792 bytes
SHA-256: edfa3845bd91f33d1586fd2c77183806511888a92ba2c411c957da609239b778
font_01_sfnt_off0004cf9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF9F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004e6bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6BF 11312 bytes
SHA-256: 39ca81dd4b2d2e37c911a2e7d4ba3f038570a833cf1542adcc118509393b717f