Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c52c8848449308…

MALICIOUS

PDF

222.9 KB Created: 2022-01-29 16:07:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-22
MD5: fb0a6e36c4a55031aafe1fbb03740cac SHA-1: 29433a3a3f7c5c8416970877a69b1ba5dc3a9916 SHA-256: e7c52c8848449308ec0d5dcc9b86b5f962db890bef22219c1aad3576292a80c0
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8083

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://tekstilkent.formenemlak.com/upload/ckfinder/files/88719931118.pdf In PDF document text
    • http://anhuicrew.com/upload_fck/file/2021-9-1/20210901094449580442.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/bajevib.pdfIn PDF document text
    • http://medianet2000.net/amm_prod/image_news_popup/file/19873603147.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161b8da30425d2---novilidujomub.pdfIn PDF document text
    • http://szcftz.com/upload/dararekevoribeselalakudeg.pdfIn PDF document text
    • https://ceccarmehedinti.ro/userfiles/file/41225952804.pdfIn PDF document text
    • https://www.studiopicotti.com/_admin/kcfinder/upload/files/gulexojodagetowemoma.pdfIn PDF document text
    • http://pcserviszlin.cz/ckfinder/userfiles/files/73169718077.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/dalaza.pdfIn PDF document text
    • http://aguito.madteam.net/ckfinder/userfiles/files/45899170514.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/4ab34ebbd69a34e7af8bc18970857233/47855739487.pdfIn PDF document text
    • http://csc-tp.com/userfiles/file/20211103163433_mh60tb.pdfIn PDF document text
    • https://rodotour.com/userfiles/file/68512226672.pdfIn PDF document text
    • http://upnbkk.com/file_media/file_image/file/55392793064.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/8cb8df2b6d9c078c344eecb2e7f84336/66349552809.pdfIn PDF document text
    • http://fialki.su/16929512589.pdfIn PDF document text
    • https://www.tristar-technology.com/ckfinder/userfiles/files/sisipitinifezakojajijuzok.pdfIn PDF document text
    • https://soechi.id/userfiles/file/naropisipuvixiputibakimi.pdfIn PDF document text
    • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/nogironepunoxebe.pdfIn PDF document text
    • http://kd-council.com/upfile/files/22184709299.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/32729787830.pdfIn PDF document text
    • http://zae.me/datafiles/file/xojomenenaposuzud.pdfIn PDF document text
    • http://www.lsv-wittlage.de/ckfinder/userfiles/files/metimewopumawuniduze.pdfIn PDF document text
    • http://adhdesign.de/userContent/files/20210927080413-kozopasebadigemigit.pdfIn PDF document text
    • https://10fci.info/userfiles/file/josugasu.pdfIn PDF document text
    • http://minhquoc.vn/ckfinder/userfiles/files/lanuwojagi.pdfIn PDF document text
    • http://arsvet.ru/img/upload/mowilejomilarutawedi.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/xetufa.pdfIn PDF document text
    • http://ukicda.com/admin/fckeditor_upfiles/file/2021111613255580554.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161aa2dcdcebdd---xizinugoduno.pdfIn PDF document text
    • http://gmei.lt/ckfinder/userfiles/files/kukezevewuwokavenivus.pdfIn PDF document text
    • https://ifunb.com/shopadmin/upload/files/72694242893.pdfIn PDF document text
    • https://big-affaires.com/img/pics/files/kabivunogidabisotepase.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/lekin.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=spanish+english+offline+dictionary+freePDF link annotation
    • https://macroedunet.com/userfiles/file/tigemedimosibikami.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_off00030448.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00030448.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30448 26048 bytes
SHA-256: a7c353093e52306117b721f3fbb06940357d4fe18d2c578dbc1293b2ada82415
font_01_sfnt_off00033b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33B6D 11088 bytes
SHA-256: 95889b144d6eeed1f9958df6b7e894f1f9e58b2112f92bf6a8245fffb3b68e4a
font_02_sfnt_off00035502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35502 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336