Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f65c30d84a28435…

MALICIOUS

PDF

534.5 KB Created: 2022-03-05 14:53:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 6db0f7d1e84e4ac4aa1ff9c0da9f4b6a SHA-1: 28fef9fe91a6183c5fbc3c0a6598c1632fa6dfaf SHA-256: 8f65c30d84a284350a8adf4df6f43ceb76627c8b4bc2c52fb1187271c300c908
196 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4009

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://norin.co.za/XSRYdR1H?utm_term=up+bed+science+syllabus+2019+pdf PDF link annotation
    • https://aquamedicasatumare.ro/ckfinder/userfiles/files/52750355678.pdfIn PDF document text
    • http://ayurvedicclinic.org/userfiles/file/gozevo.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/14079221076.pdfIn PDF document text
    • http://harmony-lazienka.pl/Upload/file/suxarukinogiperat.pdfIn PDF document text
    • http://www.amedna.com/userfiles/files/penemaso.pdfIn PDF document text
    • http://www.reenactmentmarket.eu/images/wyswig_images/file/kosixulobazof.pdfIn PDF document text
    • http://isitekmuhendislik.com/userfiles/file/tosivukizuxewafol.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/siwukamemolonulezof.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/83c136d652e1f5b8176745c808494342/burudozupefalavaw.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/6uiuro6v924ldqakvet6hrthg5/40083730982.pdfIn PDF document text
    • http://gulecbakliyat.com/panel/kcfinder/files/naxageruzolepe.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/tateg.pdfIn PDF document text
    • https://interference.ajoda.eu/userfiles/files/dafijafamug.pdfIn PDF document text
    • http://nhuaduongnhapkhauaz.com/upload/files/pajukufosi.pdfIn PDF document text
    • https://fanaf.org/article_ressources/file/nodavasagepifa.pdfIn PDF document text
    • https://www.tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/76823138357.pdfIn PDF document text
    • http://xn--j1aii.su/userfiles/file/pikak.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/83290987020.pdfIn PDF document text
    • http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/bozegeb.pdfIn PDF document text
    • http://factorysales.com/userfiles/files/dugugaroxip.pdfIn PDF document text
    • http://4bx.pl/public/file/feganetusotavawaritoze.pdfIn PDF document text
    • https://ice-group.pl/userfiles/file/18710448104.pdfIn PDF document text
    • http://9topia.com/js/kcfinder/upload/files/meweniw.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16201ce38a39bd---zukaduvezowadezebazim.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1620af052b138d---84867450851.pdfIn PDF document text
    • http://abdon.madteam.net/ckfinder/userfiles/files/92409829903.pdfIn PDF document text
    • http://man-shoes.moscowfashion.net/content/xuploadimages/file/xogajexip.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_off0007ec37.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007ec37.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007ec37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC37 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00080352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80352 17492 bytes
SHA-256: d6eb0ada98777bbdda517274cdfba7314bb153d2a056ff21dc1269fd7bf801d2
font_02_sfnt_off000830cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830CF 11120 bytes
SHA-256: 790d8ab8832ffbe2dc6298aed1837953034e7b8c0495e9c880357803a41f3c07