Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d35b193e9804e56…

MALICIOUS

PDF

130.4 KB Created: 2022-04-07 16:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: b66596acabc0d081583eb83040f16edf SHA-1: d080cce1831a1bd814d7c646a5109782d618d888 SHA-256: 5d35b193e9804e564baf0ea36b59291afeac907961cea2230165db0ce66559fe
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9679

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216b5791b0c6---11748850703.pdf In PDF document text
    • https://meritumptt.pl/dokumenty/file/nagamo.pdfIn PDF document text
    • http://jurabos.nl/include/editor/file/kopawategikoz.pdfIn PDF document text
    • http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/27462092110.pdfIn PDF document text
    • http://trip-sale.ru/userfiles/file/pakalejonodi.pdfIn PDF document text
    • http://hig-hegmann.de/userfiles/file/52112504586.pdfIn PDF document text
    • http://m2m2design.com/userfiles/81692137808.pdfIn PDF document text
    • http://gns3.swiz.eu/files/editor/xezopovemelavonur.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16232a1e371b55---vuwebubupiradijaburife.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620168572a4a9---85171480212.pdfIn PDF document text
    • https://la-klamm.org/userfiles/file/92082931750.pdfIn PDF document text
    • http://abc-tel.ru/data/File/60664020606.pdfIn PDF document text
    • http://carszana.com/image/upload/File/murazuvulutozafa.pdfIn PDF document text
    • http://www.hz-kontejnery.cz/ckfinder/userfiles/files/xixokezexeroxiv.pdfIn PDF document text
    • http://arucax.am/user_images/file/60328289707.pdfIn PDF document text
    • https://www.eclof.am/assets/ckeditor/kcfinder/upload/files/63568766324.pdfIn PDF document text
    • http://hwangtosidae.com/userData/ebizro_board/file/55000748235.pdfIn PDF document text
    • http://urotunisia.com/uploads/FCK_files/file/xafimubelodebaloz.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16223a8a824149---fufabiberojoxikeje.pdfIn PDF document text
    • https://internationalmedia.com/userfiles/file/rokuvo.pdfIn PDF document text
    • http://shangrilatheshow.com/ckfinder/userfiles/files/lutafatux.pdfIn PDF document text
    • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/piwuwi.pdfIn PDF document text
    • http://searchlinkserver.searchlink.org/userfiles/file/67247057842.pdfIn PDF document text
    • https://oriolefashion.com/ckfinder/userfiles/files/20884912883.pdfIn PDF document text
    • http://rurisnet.org/images/file/lelaxafimeduf.pdfIn PDF document text
    • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/51940255676.pdfIn PDF document text
    • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/35044977675.pdfIn PDF document text
    • https://oncallanatomist.org/ckfinder/userfiles/files/jofumovutasove.pdfIn PDF document text
    • https://vetricrackers.com/ckfinder/userfiles/files/lovedavaxesawejubojogab.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162075be0d41fa---64143437280.pdfIn PDF document text
    • http://righetti-ticozzi.it/userfiles/files/bepifowudolafakidema.pdfIn PDF document text
    • https://kinizsibank.inweb.hu/_user/file/97691480820.pdfIn PDF document text
    • http://mientaytourist.com/uploads/files/zevivopigowutafijarisat.pdfIn PDF document text
    • http://spaconsulting.pl/userfiles/file/bazijobigasawererenotid.pdfIn PDF document text
    • http://xlyz195.com/upload/file/newevopufixome.pdfIn PDF document text
    • http://www.historialmarista.org/js/kcfinder/upload/files/81647570608.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=pathala+bhairavi+old+telugu+songs+freePDF 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_off0001996f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001996f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001996f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1996F 18340 bytes
SHA-256: 6bb6ba3a9ecc4cc249fbbb5c06634268fa251408a5b6807c3de8dc469b792ea8
font_01_sfnt_off0001c951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C951 10940 bytes
SHA-256: 027440e2ba227471c1d86687b7e344756b2d01a4612a70b4ca05e3ea2d2efcf7
font_02_sfnt_off0001e26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E26E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1