Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca604f952bf2920d…

MALICIOUS

PDF

377.4 KB Created: 2022-02-14 18:07:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: eacb2affd8db800991574a82b28d2088 SHA-1: 4e5b88b7501a5e86cd3f5fc9c92ed9c997d3a8d0 SHA-256: ca604f952bf2920d8db7ead75c11cf8f18db255c9bf54f4d4b0872aac1273bc2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7782

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://loheb.co.za/XSRYdR1H?utm_term=invitation+baby+shower+template PDF link annotation
    • http://lamekatus.com/uploads/ckeditor/files/wobujigubarewadetidux.pdfIn PDF document text
    • http://ritadas.in/userfiles/file/pusafepotawipogeparig.pdfIn PDF document text
    • http://dirk6.3pi.org/images/uploadedimages/file/32277504732.pdfIn PDF document text
    • http://palletgoanloi.com/img-dn/files/71843194995.pdfIn PDF document text
    • http://tandartsindex.nl/images/uploads/41956005895.pdfIn PDF document text
    • http://nagymester.com/admin/kcfinder/upload/files/podoraxaratiji.pdfIn PDF document text
    • https://windsbs.biz/files/file/23054229507.pdfIn PDF document text
    • https://dpengineers.info/admin/userfiles/file/fululebizanodifuna.pdfIn PDF document text
    • http://tsetv.kz/app/webroot/js/kcfinder/upload/files/24563761677.pdfIn PDF document text
    • http://aerotechgroup.ru/img/outer/files/xipimakanotapinomutati.pdfIn PDF document text
    • http://sarkanyhajo.hu/files/file/22572848595.pdfIn PDF document text
    • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/burofabuten.pdfIn PDF document text
    • https://palacioquintin.com/upload/editor/file/ridowipazesepulabigowamen.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/0hbd2gff2h3i7hu87dhph9ttpl/fizelaredizojewo.pdfIn PDF document text
    • http://bacvietexpress.com/upload/userfiles/files/samotibutunofiwavik.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618c78d8aa6df---95537288509.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1611903eda0967---81583543821.pdfIn PDF document text
    • http://oldstat.ww.tj/img/file/38982836940.pdfIn PDF document text
    • https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/tagukilukikusemokedelig.pdfIn PDF document text
    • http://www.bestofasco.cz/upload/files/bamisavefijunule.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_off000561d6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000561d6.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000561d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561D6 10872 bytes
SHA-256: 7b378279de7f3909ff0fc21bd5f4b459fa7e763efd1645be3e8db29b46acbc07
font_01_sfnt_off00057aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57AA9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000591c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x591C3 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_03_sfnt_off0005a7c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7C1 17744 bytes
SHA-256: bd9affec057de8d90246b2561d6236de9cbf6751f1e41523ac7f3544aeb45c99