Malicious PDF — malware analysis report

Static analysis result for SHA-256 87518b0ebee62d89…

MALICIOUS

PDF

201.8 KB Created: 2022-03-03 22:49:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 3220dead8cf2f153c2157eb26a2ad434 SHA-1: d9a0f9b8a6859495387f8c10e2fdb4349dd9f9e6 SHA-256: 87518b0ebee62d8939c1bf2b74c317fa1de5f398e65251d4c83859c531345a9b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8230

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://gsmontaggi.it/userfiles/files/jonowiruwu.pdf In PDF document text
    • https://aartipalette.com/userfiles/file/476272278.pdfIn PDF document text
    • https://ctcitsupport.com/media/files/87926741236.pdfIn PDF document text
    • http://ggbris.com/slbdavbatala/userfiles/file/wikowubejijufajuvoketi.pdfIn PDF document text
    • http://kondicionery-himki.ru/upload_picture/file/54180384077.pdfIn PDF document text
    • http://zatoodesign.com/userfiles/files/gusarowuzomumupetewajobu.pdfIn PDF document text
    • https://rijst.nu/userfiles/file/gunawem.pdfIn PDF document text
    • https://www.transportesoro.com.co/admin/plugins/ckeditor/kcfinder/upload/files/linozuje.pdfIn PDF document text
    • http://clinicaveterinariagoitese.it/userfiles/files/pibejodoxefugikefelajol.pdfIn PDF document text
    • http://patp1ryb.ru/media/file/6662681606.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/41fffe10ff2fe71967ef03db88d61b9c/88650028234.pdfIn PDF document text
    • https://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/pajurelifefogeleseto.pdfIn PDF document text
    • https://camping-du-lac-dijon.com/userfiles/fichiers/8673276209.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16219d30f725e5---38251214056.pdfIn PDF document text
    • http://lnshiyue.com/userfiles/file/20220302070501_2070728976.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc34a21d1e8---83837297981.pdfIn PDF document text
    • http://www.podunajsko.sk/app/webroot/ckeditor/kcfinder/upload/files/39715055117.pdfIn PDF document text
    • http://stressmanagement-karriere.de/userfiles/file/wisosejasizagi.pdfIn PDF document text
    • http://www.chestheart.org/assets/ckeditor/kcfinder/upload/files/tasof.pdfIn PDF document text
    • http://dlabiura.kbo.pl/ckfinder/userfiles/files/96033764339.pdfIn PDF document text
    • https://casacresques.cat/uploads/files/29282159529.pdfIn PDF document text
    • https://jv-cms.crazy-jessie.nl/uploads/files/fikajesavatunuto.pdfIn PDF document text
    • https://heritagecambodiatravel.com/userfiles/file/33554463068.pdfIn PDF document text
    • http://ambulatorioveterinariomariani.it/userfiles/files/30383542846.pdfIn PDF document text
    • http://teleinwestor.pl/userfiles/file/madonatigigabozibukilaxi.pdfIn PDF document text
    • http://www.auberdiffusion.com/ckeditor/kcfinder/upload/files/dekonefog.pdfIn PDF document text
    • https://adilakaryakitnakliyat.com/kcfinder/upload/files/baxefosufijojatexofuj.pdfIn PDF document text
    • https://www.servicespace.org/inc/ckfinder/userfiles/files/nedemegikigekukemilisi.pdfIn PDF document text
    • https://3eyamaichi.com/upload/ckfinder_temp/files/20220224071238.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=template+ppt+animasi+bergerakPDF link annotation
    • http://dakmoto.cz/obrazky/file/jobebojefenatajumimur.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_off0002b9bb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002b9bb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002b9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9BB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002d0d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0D6 18028 bytes
SHA-256: 5beef763bdc9f10ec9fce3f4864f8c45fdcbf1fcd4973cb15c559a667835b1cd
font_02_sfnt_off0002ffd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFD1 10672 bytes
SHA-256: c814841d349f006c90da455098980fde5278be8df3ff3aa53bb6e3408d0cd225