Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5db8fa3edc856bc…

MALICIOUS

PDF

276.5 KB Created: 2022-02-13 05:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 3d2ca96202e2ca8c48bf852844f00de2 SHA-1: b90e02f06e85da4c99af172ba6f52ed2d7cc094d SHA-256: c5db8fa3edc856bccb172628e0d1b4345cfb6ec5b43e2b962679b0c09235c022
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8053

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://tevav.co.za/XSRYdR1H?utm_term=eeoc+harassment+claims+guidelines PDF link annotation
    • http://www.guidanceias.com/assets/files/plugins/kcfinder/upload/files/berawanerukakiwabopobamu.pdfIn PDF document text
    • http://ocalsandalye.com/panel/kcfinder/upload/files/gawewofomixizop.pdfIn PDF document text
    • https://www.quartzlock.com/userfiles/files/fizopobena.pdfIn PDF document text
    • https://kund-in.com/userfiles/file/25492134782.pdfIn PDF document text
    • http://www.39koratmachinery.com/file_upload/files/98039492915.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/7865514750442d2188cbda5828faef2f/nosufomuvufujubijin.pdfIn PDF document text
    • http://sibinetweek.ru/userfiles/file/91833470047.pdfIn PDF document text
    • http://webminmax.com/userfiles/file/83674302428.pdfIn PDF document text
    • http://soleilboo.com/images/uploads/files/sepubafufusupi.pdfIn PDF document text
    • https://fotografski-studio.kost.si/userfiles/file/wuvugivizigifepugepe.pdfIn PDF document text
    • http://twgo8.com/uploads/base/files/202109171259454826.pdfIn PDF document text
    • http://lawyersmarketingusa.com/user_upload_image/file/In PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614970aa1d909---porafokadopavavoxoxu.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613e140080847---zigesonokamudirumi.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/667a729da893f822d1d57ff654c0c1e1/lerijiren.pdfIn PDF document text
    • https://mayxaydunghoangphuc.com/userfiles/files/jaromunaj.pdfIn PDF document text
    • http://ydt.youtuweb.cn/a/comimg/20220206031955_3406.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614584fcbb040---1275797451.pdfIn PDF document text
    • https://ww170002.linebot.net/upfile/files/20211103090016.pdfIn PDF document text
    • http://sambometal.com/dataroom/file/43710448182.pdfIn PDF document text
    • https://produktybhp.pl/pliki_user/File/96637915161.pdfIn PDF document text
    • http://mwcapital.net//ckfinder/userfiles/files/72335030788.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_off0003e199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E199 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003f8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F8B4 18228 bytes
SHA-256: 8d7f99d616d3fd7265a6ba11ab31c0fdc918036b30b086b267eb4db21bfb9b65
font_02_sfnt_off0004286f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4286F 10900 bytes
SHA-256: ee9d915996b773b98b3b07aa6058ba2a5cecaaed6c4dff327686af5f71d8423a