Malicious PDF — malware analysis report

Static analysis result for SHA-256 191790bf8158f47e…

MALICIOUS

PDF

357.2 KB Created: 2022-02-05 18:36:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 3b0791d2ac2f9aae9c8746c33c85c66a SHA-1: f912ccca1c7694a5b7acec50932e55903c932b2f SHA-256: 191790bf8158f47e34d933f4f85c0217f5bb2dd0242c061f0888c3cdd8502e50
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7135

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://cafij.co.za/XSRYdR1H?utm_term=color+blind+counting+crows+piano+sheet+music PDF link annotation
    • http://acmemask.com/upfiles/editor/files/2735106810.pdfIn PDF document text
    • https://balustrady-metalik.pl/files/14259328697.pdfIn PDF document text
    • https://markmont.eu/editor_uploads/system/files/86720084304.pdfIn PDF document text
    • http://ticketsperiodico.com/galeria/files/vewiw.pdfIn PDF document text
    • https://kheops-so.fr/ckfinder/userfiles/files/39066907040.pdfIn PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20210907195820.pdfIn PDF document text
    • http://stroytehcentr.ru/images/file/vadusigelumugojoragefekuw.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/2gfbuvofhb5m7n3g11k4pl369f/56041212867.pdfIn PDF document text
    • https://ntct.dz/ckfinder/userfiles/files/wumeviwe.pdfIn PDF document text
    • http://hanker.ru/web/img/files/44919608938.pdfIn PDF document text
    • https://5703n1n6999-6a55.com/contents/files/tejuruwinow.pdfIn PDF document text
    • http://orthodoxnews.us/file/28125059402.pdfIn PDF document text
    • http://aotmoo.com/uploadfile/files/20211023_023555.pdfIn PDF document text
    • http://kayapaliinsaat.net/file/95564498435.pdfIn PDF document text
    • https://doucetplasticsurgery.com/ckfinder/userfiles/files/makepizunepu.pdfIn PDF document text
    • http://tehpromyar.ru/media/file/76445420643.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/okcpqvk2lvepei0v5dqn1is4ea/xinononuwafijedojewijeb.pdfIn PDF document text
    • http://shceping.com/upFile/photos/2021-9/file/69490752996.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/ca5ca220861ef16559e69b1d6d961060/4386976925.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/161d4bb0ad60cc---94886432420.pdfIn PDF document text
    • http://www.bash.cl/media/file/febiginedugubek.pdfIn PDF document text
    • https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/xabajiseluk.pdfIn PDF document text
    • https://unitedfightalliance.com/ckfinder/userfiles/files/bavepujijokefasaxemuxon.pdfIn PDF document text
    • http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/18308430571.pdfIn PDF document text
    • https://jahanchart.ir/data/files/file/vafafisu.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16169a761007f6---3694746355.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/jojetutopojupetibileti.pdfIn PDF document text
    • https://warungmimpishio.com/contents//files/25315538327.pdfIn PDF document text
    • https://samarthanamparisara.org/apadmin/uploads/userfiles/files/zetedawutigabujevul.pdfIn PDF document text
    • http://vngo-cc.vn/cooker/public/files/jokokaratemazereg.pdfIn PDF document text
    • http://sevvalturizm.com/rsm/files/43705938072.pdfIn PDF document text
    • https://crc.creativechange.net/ckfinder/userfiles/files/mafobe.pdfIn PDF document text
    • https://leosservices.com/userfiles/file/2449155506.pdfIn PDF document text
    • https://floridainvestment.cz/files/file/folomalalotixasojezuk.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16102990b3e8cf---bazezomojenalarimapoxowop.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/1293582058612df656927e0.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_off00052809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52809 11316 bytes
SHA-256: 5321a1bd7e37cc1ceaf729f9e7cadd8e66293bb4769561ebbcce99e279f4900e
font_01_sfnt_off00054219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54219 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00055934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55934 16908 bytes
SHA-256: 6ed1fbe3df3f6cc9b6d32467e908fa6709a9b514dd6308f7d1ee1af0ffce2a5f