Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad6f4bdf1a3e4a7…

MALICIOUS

PDF

280.4 KB Created: 2022-04-13 04:03:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: b8a9e8940d5a7a965febf58a32ce91a1 SHA-1: bb37cdc9a9531ccff1320f19f474fb3480cfbc45 SHA-256: 9ad6f4bdf1a3e4a71dd58615a6f4c05b4b599af54f410b14a7d0a87431b575d4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7754

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://budohurtsa.pl/userfiles/file/kafukafadareris.pdf In PDF document text
    • https://servingltda.com/userfiles/file/zeboxetinelufovipod.pdfIn PDF document text
    • https://pielinks.com/UserFiles/file/remidodixavodinit.pdfIn PDF document text
    • https://bilgepen.com/panel/kcfinder/upload/files/lirid.pdfIn PDF document text
    • https://b2bpro.xyz/userfiles/file/xisorexuwijunol.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/94c3910c6e5681be5c578d29f1bc8617/zakezaguvitalo.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/kvo6r2f7gcg5vlcbfmujh3cho4/fovifalekapedagasif.pdfIn PDF document text
    • http://nature-revive.org/files/file/jawubejojabekiz.pdfIn PDF document text
    • http://milkyway-vn.com/upload/files/71863981079.pdfIn PDF document text
    • http://nemochem.cn/upload/files/jipukozetepidozusapis.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1621f9170758bc---98844761181.pdfIn PDF document text
    • http://belspelen.nl/admin/kcfinder/upload/files/tokiwegepenovunulawex.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/poburovozogiwudujip.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/8870595413.pdfIn PDF document text
    • http://investbuild.ru/var/upload/file/ranukeluniwul.pdfIn PDF document text
    • http://antansconstructions.com/ckfinder/userfiles/files/nusupibopu.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1624ef1522f834---97943066838.pdfIn PDF document text
    • https://legouic-peinture.fr/userfiles/file/3296891395.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/11966262546255a0c6600d9.pdfIn PDF document text
    • http://protum.se/file/46989471623.pdfIn PDF document text
    • http://deborahkay.com/ckfinder/userfiles/files/bakimutamarapak.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/162404ee869036---litulodinoruzo.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=proxy+browser+apk+freePDF link annotation
    • http://yamada-kajuen.com/js/kcfinder/upload/files/wemotugoxabiganedudos.pdfIn PDF document text
    • https://b2cdemo.tickets.com/content/files/2729241990.pdfIn PDF document text
    • https://entabe.jp/upload/20220325/files/40001606277.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_off0003f679.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f679.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F679 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00040e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40E90 10544 bytes
SHA-256: ad1721c278702fe1c8279e49fb1ca1054db39b10249f2be9b520bd09ad7d3034
font_02_sfnt_off000426a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x426A6 17196 bytes
SHA-256: 825b5416deff8a1069ba34847a9f15333ae53790265ead0d64d84f5d4de22a60