Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fcae60eb0d0242…

MALICIOUS

PDF

317.3 KB Created: 2022-03-30 11:24:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 0881264c954edc3868b10c0b9258dd29 SHA-1: d146f2ad6fa6d8cff605498d050c594758e0bcf6 SHA-256: a4fcae60eb0d0242a5499dd0045ccd878f0838ac25bdfc38498aee34d2eddb07
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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 https://colod.co.za/XSRYdR1H?utm_term=gta+san+andreas+k%C3%B6pek+yamas%C4%B1 PDF link annotation
    • http://biopole-clermont.com/uploads/gestion_contenu/files/putojusuralomiralizusube.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/files/51913392607.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1621f7a95773fc---getikamej.pdfIn PDF document text
    • http://coretrade.eu/foto/image/files/gavisaduzevolov.pdfIn PDF document text
    • https://rosanaalvarracin.com/userfiles/file/jupuxefasozopegegalafemas.pdfIn PDF document text
    • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/xodawagunebiwowijukop.pdfIn PDF document text
    • http://studiodrago.eu/userfiles/files/44502474303.pdfIn PDF document text
    • https://www.groupe-coelho.fr/ckfinder/userfiles/files/noxofurejalidigizufow.pdfIn PDF document text
    • https://venus-forever.com/image/files/woxuvo.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/eo1glus6r6uqem8edlbp2sqemr/54253252049.pdfIn PDF document text
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/4876180.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/77284574884.pdfIn PDF document text
    • https://jewelilug.weebly.com/uploads/1/3/4/3/134331877/dukidewesakoferu.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/161fe41f4d6f69---44766044714.pdfIn PDF document text
    • http://sgadsahodayatarntaran.org/sahodyatarntarannew/userfiles/file/pugokukulosopilabosuv.pdfIn PDF document text
    • https://duabelas2gacor.com/contents/files/36209612935.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_off00048870.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00048870.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00048870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48870 10800 bytes
SHA-256: e5066ff563b9460d03ceb5abd8cff46d20b3095fb942a3b0ccc93647e89cd5d7
font_01_sfnt_off0004a14b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A14B 18304 bytes
SHA-256: 79270f675efc13af793d886af366435501365cb7e0d82c5abc9b3d4a664238ba
font_02_sfnt_off0004ce43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE43 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9