Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de8420eccb4bdd0…

MALICIOUS

PDF

450.9 KB Created: 2022-02-10 07:13:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 055d44ed58471e75659b9a8917b30760 SHA-1: 5d22b312bd4ad498cf70d02441fee9263964b659 SHA-256: 4de8420eccb4bdd080cf1345ef639ca72a03627823364822d7bd373dfcce40c9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5460

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://norin.co.za/XSRYdR1H?utm_term=glencoe+health+chapter+27+assessment+answers PDF link annotation
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161fcdc11d3330---88102926731.pdfIn PDF document text
    • http://att-na.com/upload/66087114357.pdfIn PDF document text
    • https://www.avantagesapp.com/uploads/files/98568263807.pdfIn PDF document text
    • https://mecaniquekd.ca/upload/file/81452987080.pdfIn PDF document text
    • http://101balkon.ru/upload/files/96595081048.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/27815967444.pdfIn PDF document text
    • https://afgventuregroup.com/cfiles/file/12985126179.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cde941ac92b---1438033209.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/pefata.pdfIn PDF document text
    • http://fese.in/ienupdimages/images/files/sorexosazivijobufile.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ccb5eb3c5ad---bixajegogidub.pdfIn PDF document text
    • http://klm-co.ru/foto/ck/files/70409228726.pdfIn PDF document text
    • http://drkoopman.nl/cmsimages/file/zafirilaf.pdfIn PDF document text
    • http://jump360.co/upload/files/20210901165028.pdfIn PDF document text
    • http://angerdress.store/ckfinder/userfiles/files/22105570919.pdfIn PDF document text
    • https://eastmanllc.com/ckfinder/userfiles/files/fatikesiwuruzebezuroz.pdfIn PDF document text
    • http://senvietsystem.com/ckeditor/upload/files/23681365517.pdfIn PDF document text
    • http://antropolog.ru/userfiles/file/5633791457.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16118388d05886---96106361852.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/gadivonitezunum.pdfIn PDF document text
    • http://kurier48.pl/files/userfiles/file/wimipuduwidej.pdfIn PDF document text
    • https://medtek.vn/storage/file/60669497159.pdfIn PDF document text
    • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/9e6bfd86dcda4e62bfbd2e94413e8bf5/damoxeret.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/severizubowativexife.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/o7ek8riom18pgjs0837h6u1km122j23g/29001953914.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618d1cb3a12cb---14592371271.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161435d7773257---ziwamiliwuvokuzalizus.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/7bafe96d2e956f7e964827e6fd0816c8/jurumoduratutuxemedazobed.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16162fdca4645e---vefimuropasotimozusival.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/lmvvjuf17tnjlfq9u7mc2m0i9b/pifedu.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102613a9a24b---204854456.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_off000695bd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000695bd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000695bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695BD 20056 bytes
SHA-256: 307971279fc8b98bfc96692cdf5a9c4a38c1c09a3f9ce3c42645b715786e8cda
font_01_sfnt_off0006ca8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA8A 10844 bytes
SHA-256: 694c6c9b47a9993cdd0d36462b86f32ec271a52eab971ec12ea2fae8bb388248
font_02_sfnt_off0006e3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3A0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9