Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fe157f95df86bb…

MALICIOUS

PDF

332.2 KB Created: 2022-03-10 08:25:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 44f5a165a16b1e7ab6c7383758b1627f SHA-1: a47007e8715d89320f635f53055c79bc9a7be435 SHA-256: a4fe157f95df86bbf872a91c9218d090f266bf0fa7a851f896ee14731ee864f2
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7789

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cafij.co.za/XSRYdR1H?utm_term=tamanna+movie+songs+ming PDF link annotation
    • https://ldoris.com/upfile/files/20220206050622.pdfIn PDF document text
    • http://fine-trading-knotwork.de/uploads/media/wimasarepoguxumadelanobu.pdfIn PDF document text
    • http://iuppitergroup.it/kcfinder/upload/files/sekidovus.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16211c95c854fd---suwumiwukovusobitudurag.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/89352594031.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/162285f3a07996---58229329354.pdfIn PDF document text
    • http://ityab.com/cache/fck_files/file/56111915411.pdfIn PDF document text
    • http://westernvintage.com/kcfinder/upload/files/rogoz.pdfIn PDF document text
    • http://shop-cartuning.pl/userfiles/file/jimafagewagizuwuje.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/tukegedixuso.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/fapepixewinomas.pdfIn PDF document text
    • https://brillimet.com/uploads/files/202203032130277130.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/jexuwikefigomaveni.pdfIn PDF document text
    • https://clubberia.com/js/ckfinder/userfiles/files/44582950507.pdfIn PDF document text
    • http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/1034428228.pdfIn PDF document text
    • http://gorisum.net/fckeditor/upload_file/file/99187602936.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1620db2b35a818---duliveridopufiv.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16217a80d2eed6---30424285521.pdfIn PDF document text
    • https://frezcentrum.hu/kcfinder/upload/files/gazuzuvopata.pdfIn PDF document text
    • https://travelbook.kz/kcfinder/upload/files/tasopexeribip.pdfIn PDF document text
    • http://em-mould.com/ckfinder/userfiles/files/974284262.pdfIn PDF document text
    • https://gabconstruction.com/ckfinder/userfiles/files/nigilusebaziwebizumi.pdfIn PDF document text
    • http://hotstamping.pl/files/file/23256700178.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/21366577825.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_off0004c3d1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c3d1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3D1 10236 bytes
SHA-256: 7f6a8b2f2094a1d397fb24498236f932b2170ac11ea42213ef2bcd7a3dcab4ed
font_01_sfnt_off0004dad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAD0 18516 bytes
SHA-256: 49ecb68370e52cd023e241ce8572c2cbcd1d60cae60041d7dab1fa60ae1f125e
font_02_sfnt_off00050b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B68 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9