Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8b0858c138f320…

MALICIOUS

PDF

206.1 KB Created: 2022-03-04 02:33:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: abd9d8d508e148de333dba67eb384d3c SHA-1: f402e0d25e5158242bfa035e74d2249496f5f6b0 SHA-256: 2c8b0858c138f3205bf17f66855663c82fca927602dfff4d71d59e7520c1dde7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6786

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://fecuq.co.za/XSRYdR1H?utm_term=bushnell+telescope+manual PDF link annotation
    • http://splogservice.ru/content/file/mexaxuga.pdfIn PDF document text
    • http://atomleasing.ru/media/File/13729467486.pdfIn PDF document text
    • https://publiperu.org/land/images/userfiles/file/jiwuv.pdfIn PDF document text
    • https://qcbusa.barettis.com/userfiles/file/zabujaginaweguzomomigo.pdfIn PDF document text
    • http://plncse.hu/php_data/file/vomiwugabag.pdfIn PDF document text
    • http://brlairport.com/images/file/zabulili.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/a73c914fa169c5bf98cfedd01e221477/gabusimobadumufagoba.pdfIn PDF document text
    • http://lltsg.com/uploadfile/file///2022021300141079.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621d99e4b61b1---garujovasaxu.pdfIn PDF document text
    • http://cnsgafgl.netsociality.com/upload/files/nixupepuxuwebojiru.pdfIn PDF document text
    • http://afgesproken.nl/kcfinder/upload/files/mekigogasubapuxo.pdfIn PDF document text
    • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/juzivowuxetafo.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/wawifiwusovujamebewete.pdfIn PDF document text
    • https://bangvetthuong.com/luutru/files/63270080620.pdfIn PDF document text
    • http://studioego.cz/userfiles/file/nironokugabob.pdfIn PDF document text
    • https://tssch.in/tssch/application/admin/uploads/file/dagijorusubanoronel.pdfIn PDF document text
    • http://minhanh.com/files/30777992467.pdfIn PDF document text
    • http://www.kizkulesikizogrenciyurdu.com/public/ckfinderuploads/files/61642407961.pdfIn PDF document text
    • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/sejanuzimevuro.pdfIn PDF document text
    • http://tsuyopillar.com/assets/kcfinder/upload/files/79562531142.pdfIn PDF document text
    • https://laurallo.com/ckfinder/userfiles/files/dezejiwikutewiwevoko.pdfIn PDF document text
    • http://wabasnb.com/files/fckeditor/file/198041053961ff35d8b8f4c.pdfIn PDF document text
    • http://fatfailogistics.com/fckeditor/files/file/79260811314.pdfIn PDF document text
    • http://yamada-kajuen.com/js/kcfinder/upload/files/68435371818.pdfIn PDF document text
    • http://elitakhealing.com/ckfinder/userfiles/files/tibupumol.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1621a69564d842---12980906270.pdfIn PDF document text
    • http://www.bioengenharia.com.br/public/libs/kcfinder/upload/files/zidedatinebip.pdfIn PDF document text
    • http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/6292864099.pdfIn PDF document text
    • http://kdekdyjak.cz/data/44166254079.pdfIn PDF document text
    • https://www.amis-simserhof.fr/kcfinder/upload/files/jofifanezatabebobukili.pdfIn PDF document text
    • https://coil.hk/upload/files/20279364019.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/gedup.pdfIn PDF document text
    • https://perfecthospitals.com/FCKeditor/file/nadivobakivunepununudot.pdfIn PDF document text
    • https://winpoasia.com/ckfinder/userfiles/files/jefupasiwow.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/5400868527.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/94398544097.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16216a38179c78---tejemuwakagetevokik.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_off0002c313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C313 10600 bytes
SHA-256: 4e4b1402c7d77197f53f933f5efe2c2b388da424d602977e4d6354c24cf21555
font_01_sfnt_off0002db31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB31 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002f24c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F24C 21072 bytes
SHA-256: fef51aab0fecac70322919fbfda65d2e1e4dd1e7c99aa051f3f097f9819c4b22