Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d832745536ccae…

MALICIOUS

PDF

299.4 KB Created: 2022-02-22 18:50:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: da624763b4da920d9ed8ecbe8c568918 SHA-1: 84d0174abefdca2a394779db397b04f475ec352a SHA-256: b5d832745536ccae99c597508d09e145f44610ffc4638408a3aeb2022d0996f3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6043

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://colod.co.za/XSRYdR1H?utm_term=myocardial+infarction+ppt+free PDF link annotation
    • http://unternehmensberatung-hegenbarth.de/userfiles/file/lemixulewerefobisi.pdfIn PDF document text
    • http://ineb.izevo.cz/userfiles/file/94469475584.pdfIn PDF document text
    • https://areopag.ru/sites/default/files/uploads/20949639362.pdfIn PDF document text
    • http://inhome360.ru/admin/ckfinder/userfiles/files/10600610729.pdfIn PDF document text
    • https://qualityroofinnandsuites.com/nbloom/fckuploads/file/86691087320.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/89075930281.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16196be2f30b79---davuzisufelunotu.pdfIn PDF document text
    • http://zetrade.cz/userfiles/file/vegatirotisoguza.pdfIn PDF document text
    • https://georeno.ca/userfiles/files/47952593706.pdfIn PDF document text
    • http://jkbprivateiti.com/userfiles/file/boxekakuloredelutuzunike.pdfIn PDF document text
    • https://atarentacarburdur.com/userfiles/file/tetunosedixelevefup.pdfIn PDF document text
    • http://silver1979.com/upload/file/vutaxivivelisazilafijuga.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/xizofigikulanotetawujesox.pdfIn PDF document text
    • http://bep-au-cong-nghiep.theonejsc.com/userfiles/file/rewonajewubewilaba.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/30279317340.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/vonegulixe.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16168e720bedc4---6440244835.pdfIn PDF document text
    • http://anshan56.cn/userfiles/file/16360175022026326835.pdfIn PDF document text
    • http://kidzcastleschool.com/singhania/downloads/file/pexukukasog.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/84605349661b0eca3c6ff6.pdfIn PDF document text
    • http://boekenwinkelindex.nl/images/uploads/3813054621.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161744fad55293---6946348390.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16186cb767156c---20750929143.pdfIn PDF document text
    • https://asiastudy.in/ckfinder/userfiles/files/wefij.pdfIn PDF document text
    • http://80tner.friend-match.com/upload/files/nidopofukitifevudu.pdfIn PDF document text
    • http://www.saletime.gr/admin/fckfiles/file/44714953320.pdfIn PDF document text
    • https://marikakozmetika.hu/editor_up/xolovujerigogujel.pdfIn PDF document text
    • https://tivicom.vn/upload/files/16379518855.pdfIn PDF document text
    • http://kimhoatra.vn/upload/fckimagesfile/vifagokiwogepebolugiwa.pdfIn PDF document text
    • http://onishi-kyosendo.jp/archive/gadef.pdfIn PDF document text
    • https://hoangnhataudio.vn/media/files/74109736486.pdfIn PDF document text
    • http://buren-kompanie.de/userfiles/files/9089497650.pdfIn PDF document text
    • http://acril.ru/ufiles/files/zokevirop.pdfIn PDF document text
    • http://biswasi.com/userfiles/files/15928905905.pdfIn PDF document text
    • http://annabarons.com/files/files/80025519411.pdfIn PDF document text
    • http://sjar-tech.com/uploadfile/file///2021071519251450.pdfIn PDF document text
    • http://winagain.co.za/kcfinder/upload/files/juwozugulapuvekedijosiri.pdfIn PDF document text
    • http://cp-tournament.org/ckfinder/userfiles/files/76920867893.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/putiriboda.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_off00043fcb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043fcb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43FCB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000456e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x456E6 17696 bytes
SHA-256: c03f81d066693fd90a29ab4c466daf9a8a58bbfa857fce38f4f954795e2e9f5c
font_02_sfnt_off0004853c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4853C 10552 bytes
SHA-256: b313a8f4d4d4f246de16d21354a5cc75968b68dd27b6290ffdd762a83b06ea9b