Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d52308ebca9f2ff…

MALICIOUS

PDF

328.6 KB Created: 2022-02-27 10:37:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: e3cdf1ab394914cc7539bba07d07d144 SHA-1: 31f8350d7239b2bb0538a4242b01d13cbeaf518f SHA-256: 0d52308ebca9f2ff630f6956d62d031540dc89ba4980f51c1fe8eccd818f72cc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7163

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 http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1618f3875208cd---6476009654.pdf In PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/c4f94a62bd2a190d1ad7729cc3f6b1d1/50053876259.pdfIn PDF document text
    • http://jian-yuan.com.tw/kcfinder/upload/files/pinolavotule.pdfIn PDF document text
    • http://iq-money.ru/upload/files/jejobupidonu.pdfIn PDF document text
    • http://steelfurniturecn.com/d/files/xojisinefen.pdfIn PDF document text
    • http://ondamarinarest.com/upload/files/52286025070.pdfIn PDF document text
    • http://sakesushilakehavasu.com/uploads/files/5943547131.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/35211342457.pdfIn PDF document text
    • https://intekcanada.com/ckfinder/userfiles/files/89523656494.pdfIn PDF document text
    • http://ingenermarket.ru/userfiles/69588651100.pdfIn PDF document text
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161b827a833f13---52388360312.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1616b661d9cb57---84952401635.pdfIn PDF document text
    • https://wittnebel.dk/file/lineruremamotamejasewaz.pdfIn PDF document text
    • http://fcraregistration.com/UploadedData/file/juwefinozonipoginokuz.pdfIn PDF document text
    • http://ganteltechnology.com/system/userfiles/file/40569144171.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161df3f3984750---fubasaxupewubikebakukiroj.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/161fe995e4a114---kafinalonavejaxunuvimanad.pdfIn PDF document text
    • http://huyndaicaudien.com/upload/files/xijupajamibozat.pdfIn PDF document text
    • https://sjamsul-hidajat.id/ck_uploads/uploads/files/seruzisedebupeg.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/161c6d014c85bb---lupux.pdfIn PDF document text
    • https://liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/19887161345.pdfIn PDF document text
    • http://capital96.com/userfiles/file/benate.pdfIn PDF document text
    • http://ticketsperiodico.com/galeria/files/27101338283.pdfIn PDF document text
    • http://bthg.bagwfbm.de/upload/files/72266890106.pdfIn PDF document text
    • http://dgone.kr/userfiles/file/20211013120747.pdfIn PDF document text
    • http://101-games.ru/images/uploads/files/kaparu.pdfIn PDF document text
    • http://contactfm.be/userfiles/files/dopiguvejubegepetitawe.pdfIn PDF document text
    • http://aaz.sk/editor_uploads/files/nevoxe.pdfIn PDF document text
    • http://quocteanviet.com/img-chamthi/files/84829786545.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/24721f1f4409e1d59b65f6fb3db208a6/87908099446.pdfIn PDF document text
    • https://u-spot.biz/js/ckfinder/userfiles/files/30904352569.pdfIn PDF document text
    • https://konchris.com/userfiles/file/1632063662.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=check+out+noun+formPDF link annotation
    • 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_off0004adb3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004adb3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004adb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADB3 10356 bytes
SHA-256: d4173fae1ea3bca62ae6ff6d900b0e9775297e6af066e2d663d52c1109a2a0d9
font_01_sfnt_off0004c4ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4EE 20012 bytes
SHA-256: 239a881fe49669524c21cbbe7573e0c7668f663c17d4c0f44e48a83a3490e259
font_02_sfnt_off0004f9b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9B5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9