Malicious PDF — malware analysis report

Static analysis result for SHA-256 88baf270dfcf2163…

MALICIOUS

PDF

316.9 KB Created: 2022-02-26 04:03:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: ef8aa0209082b342e9148f65e8fdbd24 SHA-1: 7acde761ba7608963668a5593e2f25c3450e8dcb SHA-256: 88baf270dfcf216358befee1012028f6d70db5cdac4565a37886a1ed6145a17a
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6874

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://carsen.sk/editor_uploads/system/files/68230056300.pdf In PDF document text
    • https://argentinaproduct.com/ckfinder/userfiles/files/ronekelasafafudese.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/r1a5jrm46j6k8cmlh6stuinjtd/95019355072.pdfIn PDF document text
    • http://furniture83.com/upload/files/50184101710.pdfIn PDF document text
    • http://ablerexthailand.com/userfiles/files/8041819802.pdfIn PDF document text
    • http://konikanarrowfab.com/ckfinder/userfiles/files/vugokulor.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20211106130114_jty19y.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/10910614542.pdfIn PDF document text
    • http://siddharpeedam.org/userfiles/file/In PDF document text
    • https://www.antoniopopolizio.it/ckfinder/userfiles/files/dejuletavamimurereji.pdfIn PDF document text
    • http://bdpq.hungminhits.com/files/uploaded/files/buboxumukexenepakiv.pdfIn PDF document text
    • https://gionggiacam.com/ckfinder/userfiles/files/peduparexevawomerizurewew.pdfIn PDF document text
    • http://conditum.nl/userfiles/file/70610744030.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/0795901b7d1440e87608cba15da44fac/bobumuxa.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161c99874de925---mupotug.pdfIn PDF document text
    • http://medeeatour.ro/mm/file/3827300826.pdfIn PDF document text
    • http://eggtesting.com/admin/uploads/file/39139410103.pdfIn PDF document text
    • http://tiendanatacion.com/noticias/files/gisikopudidewal.pdfIn PDF document text
    • https://tamm.be/_files/file/87435595343.pdfIn PDF document text
    • http://medeeatour.ro/mm/file/miwosekakure.pdfIn PDF document text
    • http://klwas.org/userfiles/images/file/bexesonizadagi.pdfIn PDF document text
    • http://lossfundraisingevent.com/clients/f/f5/f5ed5e364f2f51aa46a4c5982fab9a07/File/3690533529.pdfIn PDF document text
    • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/73544680807.pdfIn PDF document text
    • http://bjjiffy.com/upload/megudu.pdfIn PDF document text
    • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136d6da0f405---53836064124.pdfIn PDF document text
    • http://alidongdong.coco1490.com/upload/file_folder/file/fazadotos.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=caudiciform+and+pachycaul+succulents+pdfPDF 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_off00046f93.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00046f93.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46F93 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000486ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x486AD 16148 bytes
SHA-256: 1c024217ce21bb66922f73502146d3c7616b47413e2e194c36dd680b30e64e78
font_02_sfnt_off00049c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49C3A 11132 bytes
SHA-256: 47fe14962b0b51c268b096d4bdf8981724be67d0355266a103b733a133203db1
font_03_sfnt_off0004b60b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B60B 17492 bytes
SHA-256: 5ba47f1b06c7e7068cf25c4c9673c1197b57733857d65f0838ec073191a7dcfc