Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb04041a883e9e5e…

MALICIOUS

PDF

213.7 KB Created: 2022-02-27 01:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 37ec6cd8e091447a409116976832912f SHA-1: 15ad87255b5675a0c583b4133425194374e5f191 SHA-256: fb04041a883e9e5e243cefeee09487758d0febbe7e684e63c6efa6fc42d3876b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6151

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://mifuj.co.za/XSRYdR1H?utm_term=bizhub+c258+driver++windows+10 PDF link annotation
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/da200c50c93b0345f4b5dad3c312d580/feromejoxuluwefisuj.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/161973358970cf---12072650388.pdfIn PDF document text
    • https://aimara-bg.com/userfiles/file/63610827603.pdfIn PDF document text
    • http://umrllc.com/userfiles/files/9752776699.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/xisotopovumu.pdfIn PDF document text
    • http://latexindia.com/userfiles/file/54761708096.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16198b04b8144c---ligiwegonaranunime.pdfIn PDF document text
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/sibimukasegulapen.pdfIn PDF document text
    • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/90939734678.pdfIn PDF document text
    • http://www.santamyoga.be/images/file/45892535235.pdfIn PDF document text
    • http://bjhtdszdh.com/v15/Upload/file/202112211751143959.pdfIn PDF document text
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/69230844768.pdfIn PDF document text
    • https://infotechloyalty.com/bot/ckfinder/uf/files/seduselezexatamewonoribeg.pdfIn PDF document text
    • https://loyallcanada.ca/editor_files/file/koguwujepi.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/bepibasexot.pdfIn PDF document text
    • http://topp.pl/_topp/file/dosamakibon.pdfIn PDF document text
    • http://polletnv.be/uploads/files/32155880220.pdfIn PDF document text
    • http://defhjdrjioo.friend-match.com/upload/files/39391232696.pdfIn PDF document text
    • http://www.acs-pack.fr/kcfinder/upload/files/71348907762.pdfIn PDF document text
    • http://www.radanhorse.com/resource/files/xezaxep.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fdf22a0ce70---61316221495.pdfIn PDF document text
    • http://tjchenxing.com/filespath/files/20210809074535.pdfIn PDF document text
    • http://charontrade.hu/data/file/wukudokoja.pdfIn PDF document text
    • https://soalmatematik.com/userfiles/file/49299157335.pdfIn PDF document text
    • http://gocash2u.xyz/userfiles/file/61391636586.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/fd2f66c21a8c734e6529f12a9b8454a2/51062063962.pdfIn PDF document text
    • http://www.snhram.ru/kcfinder/upload/files/29208306949.pdfIn PDF document text
    • http://dogomanhnghia.com/uploads/files/67131910298.pdfIn PDF document text
    • https://tedvandergulik.nl/userimages/file/88775384930.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161d27b6791964---3165476826.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161697f4b2ccff---goroweka.pdfIn PDF document text
    • http://alvitraders.com/files/jafasib.pdfIn PDF document text
    • http://wwsm-us.com/files/file/71731650667.pdfIn PDF document text
    • http://hardevel.com/data/files/xukebeduzibujokovi.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/161debba43f6ee---57426363826.pdfIn PDF document text
    • https://vizesblokk.hu/files/file/31858986188.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161b17faac3eee---gujigekevuruzesubu.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_off0002aa97.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002aa97.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002aa97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA97 11304 bytes
SHA-256: e37db7bfd264b031c588142fc0356542aee4b220d54496c5c3301a92ca380e04
font_01_sfnt_off0002c54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C54A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002dc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC61 18216 bytes
SHA-256: 20282902cc99b4d53c809a1d1b96cf050b0d1b720fc1b71fe53df488eb20fbdc
font_03_sfnt_off000314a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314A1 18812 bytes
SHA-256: 7a94fb8a3806f003592c4dca7e1786f3541d0d3f3521f001199e0256848c8487