Malicious PDF — malware analysis report

Static analysis result for SHA-256 875c213faaf8d52e…

MALICIOUS

PDF

380.2 KB Created: 2022-03-27 19:51:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 2bd169784fa02ee0cb7035c93356947f SHA-1: 2f623e5f05bad6c4dacffd5dbac993575391af3f SHA-256: 875c213faaf8d52e1436cc6e61e79449d34308f7fba34522575696cd59fd063e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5513

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://catmo.fr/kcfinder/upload/files/75252122688.pdf In PDF document text
    • http://bulongvungtau.com/media/ftp/file/57882342514.pdfIn PDF document text
    • http://bochkari1.ru/pic/file/40612093101.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/b7f242566e0b7c385832be6d756862ae/gakexitevinoru.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/femewuwojevukabisigijir.pdfIn PDF document text
    • https://bennex.co.th/assets/kcfinder/upload/files/3447465079.pdfIn PDF document text
    • http://effektfilm.de/files/file/lasisefazuwelulifu.pdfIn PDF document text
    • http://studiobonvino.com/userfiles/files/zeguwas.pdfIn PDF document text
    • https://dasyueshan.org/userfiles/file/pixasetamubedisimixivezu.pdfIn PDF document text
    • https://www.phutungnganhmay.com.vn/kcfinder/upload/files/fodekumotakodo.pdfIn PDF document text
    • http://lonerangerfanclub.com/ckfinder/userfiles/files/72469851722.pdfIn PDF document text
    • http://mp-journal.com/media/file/10730131830.pdfIn PDF document text
    • http://opusincertum.it/userfiles/files/wutuw.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16231df286b0e8---waniradegerekatadaweri.pdfIn PDF document text
    • https://savremendom.com/upload/files/sadonuk.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16216b66ecea0b---2535027821.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/66259539871.pdfIn PDF document text
    • http://cissi.it/userfiles/files/67031944932.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/24437324492.pdfIn PDF document text
    • http://salonlisien.com/upload/files/89468778386.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/kiluroxejakovabugoliv.pdfIn PDF document text
    • http://mama-care.com/UserFiles/file/zapejavovov.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f97164aedb9---wukedijerinupuxixu.pdfIn PDF document text
    • http://3q1p.com/upload/file/220326034616427016jgi2hlws71hz.pdfIn PDF document text
    • http://nextlab-semi.com/files/fckeditor/file/5518436018.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/56852147533.pdfIn PDF document text
    • http://vxclouds.com/userfiles/file/beneza.pdfIn PDF document text
    • http://sgyscom.com/upload_fck/file/2022-2-23/20220223025955493831.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16207b05111361---sukivikijixuvanagixuxed.pdfIn PDF document text
    • https://prospr.fr/ckfinder/userfiles/files/57942478190.pdfIn PDF document text
    • http://clickvay.com/upload/files/kidupelulenuwomesoxe.pdfIn PDF document text
    • http://zenhowell.com/upload/file/12312959373.pdfIn PDF document text
    • https://laundrybyconrads.com/nbloom/fckuploads/file/37493219799.pdfIn PDF document text
    • https://www.phuketvillarentalandservices.com/ckfinder/userfiles/files/13683500801.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/xubuguma.pdfIn PDF document text
    • https://parlagame.net/calisma2/files/uploads/85387362539.pdfIn PDF document text
    • http://phuctuong.vn/images/files/19490336391.pdfIn PDF document text
    • http://studioambienteterritorio.it/userfiles/files/29334898827.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=como+se+divide+la+mesa+de+ri%C3%B1onPDF 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_off00057961.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00057961.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57961 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00059081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59081 10612 bytes
SHA-256: cd94135382e7748c89add99d079677abb4ffa29d66cdd9ad4e08653fede9a2b5
font_02_sfnt_off0005a879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A879 21836 bytes
SHA-256: a3c1b67be6bbe76f709d76296a6301b2ec47988a398008369f8c5b33f458d115