Malicious PDF — malware analysis report

Static analysis result for SHA-256 018bd8a5776b0b7f…

MALICIOUS

PDF

404.4 KB Created: 2022-02-18 22:02:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-08
MD5: 23a83198d644803718b402ce173d5eee SHA-1: b6cd439a6f3e335571f7ee7c42416cfdb6506e9e SHA-256: 018bd8a5776b0b7f15b353a3eb639c1bd67cedc60902178e613fa350be60eab1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6563

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 http://dubiliergarten.de/uploads/files/panukotakobu.pdf In PDF document text
    • http://hanker.ru/web/img/files/57679306303.pdfIn PDF document text
    • http://boletos.luzservicos.com/ckfinder/userfiles/files/68978185035.pdfIn PDF document text
    • https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/70150214184.pdfIn PDF document text
    • https://bulendengin.com/upload/ckfinder/files/81427489943.pdfIn PDF document text
    • http://tamtamphat.com/upload/files/18152818276.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/44906603065.pdfIn PDF document text
    • http://sentezetutmerkezi.com/upload/ckfinder/files/pasuposexaxesoxidate.pdfIn PDF document text
    • http://china-steamboiler.com/d/files/25612268296.pdfIn PDF document text
    • https://bentonhomebuilders.com/kcfinder/fubusewagurifeto.pdfIn PDF document text
    • https://1000fdep.talenzsoftware.fr/upload/files/46818167027.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/rinadupeburen.pdfIn PDF document text
    • http://pk.mo/userfiles/file/21666569198.pdfIn PDF document text
    • http://transchem-tech.com/Uploadfiles/files/98189292898.pdfIn PDF document text
    • https://artofsurfing.com/preview/ckfinder/userfiles/files/83468811704.pdfIn PDF document text
    • http://sensi-leszno.pl/userfiles/file/96697444794.pdfIn PDF document text
    • http://helenhotel.vn/upload/files/40878297648.pdfIn PDF document text
    • https://makenie.com/upload/files/runugusubawadodisuv.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616f6b035f139---lizaseredunutipa.pdfIn PDF document text
    • http://ppic.pl/www/js/kcfinder/upload/files/80174186838.pdfIn PDF document text
    • https://sambelteri.com/contents//files/14678751153.pdfIn PDF document text
    • https://asi-filter.pl/files/file/rumasukolibuv.pdfIn PDF document text
    • http://abwmercury.com/uploads/files/49291968628.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1610fc2d9ef9db---xujavag.pdfIn PDF document text
    • https://sealordhotels.com/ckfinder/userfiles/files/11628369629.pdfIn PDF document text
    • http://interstyle.org/content/xuploadimages/file/45907023018.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16125c93e2b332---82447115678.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615ac5a3db203---bexotorosof.pdfIn PDF document text
    • https://farmaciasacoor.com/site/upload/file/52248882988.pdfIn PDF document text
    • http://holidayinntorino.com/userfiles/files/63528290866.pdfIn PDF document text
    • http://exmar.it/foto_fck/file/ruxipokive.pdfIn PDF document text
    • http://eldorautomaticgates.com/UserFiles/file/dopabifivekaw.pdfIn PDF document text
    • http://harckocsik.hu/userfiles/file/82708793825.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/zeduzisurajejorij.pdfIn PDF document text
    • http://granitemountainranch.net/userimages/52118167943.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/6a3323a48784986b1a349f3bf93a2769/wenapevolovivavalogizebif.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/woworelezuxipomarolo.pdfIn PDF document text
    • http://mofrantech.com/userfiles/file/pemulonuviviwavesexufugi.pdfIn PDF document text
    • http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/poserozezurifemimudosu.pdfIn PDF document text
    • http://newcityhk.com/userfiles/sojemimasaderigagij.pdfIn PDF document text
    • http://heyumpnd.com/userfiles/file///35189181220.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=weather+report+college+station+txPDF 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_off0005e15e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e15e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E15E 17984 bytes
SHA-256: cd1e12821e698a93b9f11bf7e449c2a96d6911c3f7dd4bb30786a0d006c193e7
font_01_sfnt_off00061032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61032 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00062752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62752 10748 bytes
SHA-256: ec4192be09fc59e5fe63b9192f3c20a8ff578e77fb19fdf2e96d5536608b9561