Malicious PDF — malware analysis report

Static analysis result for SHA-256 4256182eb7c3f3c8…

MALICIOUS

PDF

354.4 KB Created: 2022-04-02 13:53:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 2e41066a656dd144233db0b670f9e659 SHA-1: 31a8daa1f9cf8e83b27fd9a95c87483b8e4d3b16 SHA-256: 4256182eb7c3f3c8e554e423d8dd75a63364b80c43c4ce091bf9c49e7b63afcf
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

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://wirut.co.za/XSRYdR1H?utm_term=batter+my+heart+three+personed+god+summary PDF link annotation
    • https://nadoxunerakabem.weebly.com/uploads/1/3/4/3/134378450/9387820.pdfIn PDF document text
    • https://mumovukejepi.weebly.com/uploads/1/3/1/4/131483147/af53ea5ce.pdfIn PDF document text
    • https://xizoxapuxuraxe.weebly.com/uploads/1/3/4/5/134598133/wafikaj-xadax-zatudela.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d2be19ae90---jepivuzuzagakitaxovux.pdfIn PDF document text
    • https://vojebibupotipat.weebly.com/uploads/1/4/1/3/141302015/5fe312e63e2c.pdfIn PDF document text
    • https://japifopegukev.weebly.com/uploads/1/3/5/9/135975580/69cd6c19c.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/162275f1f795a4---tivadonusasagapezizu.pdfIn PDF document text
    • https://sedesafatowezu.weebly.com/uploads/1/3/1/4/131437285/2680420.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225393eabeec---moxanejuxasuzuzafepodoran.pdfIn PDF document text
    • http://bishalfurniture.com/assets/kcfinder/upload/files/71580505694.pdfIn PDF document text
    • https://gufevetiginuz.weebly.com/uploads/1/3/4/6/134626386/8200219.pdfIn PDF document text
    • http://hibertek.com/image/files/20220322_170522.pdfIn PDF document text
    • https://lafajadisevo.weebly.com/uploads/1/3/1/4/131454770/tiwobexirutesigopaju.pdfIn PDF document text
    • https://menegelobeka.weebly.com/uploads/1/3/4/9/134903334/7fa8e9a195d226.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161ffaf347a45e---87974353837.pdfIn PDF document text
    • https://natomujan.weebly.com/uploads/1/4/1/2/141218151/bed14b832a795a.pdfIn PDF document text
    • https://bugevokugado.weebly.com/uploads/1/3/4/8/134870551/9489466.pdfIn PDF document text
    • https://mujolimu.weebly.com/uploads/1/3/4/8/134868529/4fe1b.pdfIn PDF document text
    • https://gazeta-msp.pl/user_files/File/samamawokituxikex.pdfIn PDF document text
    • https://lelunoforonu.weebly.com/uploads/1/3/1/6/131606056/kazidonobonujikazew.pdfIn PDF document text
    • https://sunivisoxeban.weebly.com/uploads/1/3/4/4/134493344/jivudexasakuluve.pdfIn PDF document text
    • https://tanezogifa.weebly.com/uploads/1/3/4/3/134321065/2566134.pdfIn PDF document text
    • https://jutonigozazizeg.weebly.com/uploads/1/3/4/7/134700746/6490293.pdfIn PDF document text
    • https://nasaxedinevizuv.weebly.com/uploads/1/3/4/7/134759800/7622e53cc55e1.pdfIn PDF document text
    • https://fovezifume.weebly.com/uploads/1/3/0/8/130874198/6bd9f85f5.pdfIn PDF document text
    • https://nokidekuget.weebly.com/uploads/1/3/4/6/134669445/8303927.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000519bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x519BC 10968 bytes
SHA-256: 6443612e3b4aa671b1afd6dc1d4489363a4451bb2db321b3ee9dbd3ee92f2e4d
font_01_sfnt_off000532e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532E0 18268 bytes
SHA-256: d3045adf0c046580d467bdb010d1c83d256395acb283bbe6eeabe4540d66a4dc
font_02_sfnt_off00056222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56222 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1