Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cf33ed1bee5159…

MALICIOUS

PDF

325.6 KB Created: 2022-03-26 13:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 0b18c0e80e43ce0a235b6bb978694844 SHA-1: 970999923646f818660257b769bbc75e1238655b SHA-256: a9cf33ed1bee51593bb3e9f9b4696a7b89a5a1bdc23146dc218ee5600a205870
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7505

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://loheb.co.za/XSRYdR1H?utm_term=ragnarok+revo+classic+merchant+leveling+guide PDF link annotation
    • http://kxqcgs.com/filespath/files/20220223055152.pdfIn PDF document text
    • http://charolais-hessen.de/write/userfiles/file/64051780529.pdfIn PDF document text
    • https://sandpiperpressurecleaning.com/nbloom/fckuploads/file/43080605836.pdfIn PDF document text
    • http://amsuatrust.org/survey/userfiles/files/fudawiledupixuset.pdfIn PDF document text
    • http://mirgalosh.moscowfashion.net/content/xuploadimages/file/62625428429.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16231ce0f278cf---52374323650.pdfIn PDF document text
    • http://realestatespoznan.com/uploads/13903915902.pdfIn PDF document text
    • https://www.coremg.org.br/dinamico/includes/kcfinder/upload/files/86653881410.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16200e2d0827be---bogefifovakudabesivitosi.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/nuwakisimegurufirunuseb.pdfIn PDF document text
    • http://simonkuehner.de/gfx/userfiles/files/12410667514.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/162192ba68d8fe---67584892837.pdfIn PDF document text
    • http://cascad-trans.ru/files/21725044121.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16212ab89539a3---saloj.pdfIn PDF document text
    • http://vivatbacchus.hu/files/file/58642390894.pdfIn PDF document text
    • https://gatheritup.com/js/kcfinder/upload/files/nipetoreni.pdfIn PDF document text
    • http://straps.by/ckfinder/userfiles/files/suziresuxugitovumuxagi.pdfIn PDF document text
    • http://lungshingcentre.com/userfiles/49595609988.pdfIn PDF document text
    • http://druckmaschinenservice.com/uploads/fce/files/difogidanezowifiwanire.pdfIn PDF document text
    • http://packagingandfoodmachinary.com/userfiles/file/mavupiwibujijusosusepumog.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162081fb247954---83900308936.pdfIn PDF document text
    • https://vatlieuchongnong.baohohoanglong.com/userfiles/file/weruworisoka.pdfIn PDF document text
    • https://mcsfood.com/images/file/fisawojuwebisejunupegavu.pdfIn PDF document text
    • http://lyzjkgm.com/d/files/kewixopovoxur.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_off0004a3cb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a3cb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a3cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A3CB 11120 bytes
SHA-256: d968a36ac8a8de12151b877fb3885f7cda5798e3948e8145e7cb6fef83ab8852
font_01_sfnt_off0004bd62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD62 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004d47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D47D 18740 bytes
SHA-256: 836060e63b01ab22fac7d4ca2db1bf39c3f272a8fe5c485d0f60aa4b79bdaae7