Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cdf34814875fd3…

MALICIOUS

PDF

261.4 KB Created: 2022-03-08 02:22:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: b34f2d35e3f0a6713b19da94bf433677 SHA-1: 9bdff411452e9e1c7edcfc61c137eb75e4f681f6 SHA-256: a9cdf34814875fd34eee45176e1757af35e58592507d9260a9227f65ab2b1b08
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8620

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://loheb.co.za/XSRYdR1H?utm_term=momoland+boom+boom+dance+free++video PDF link annotation
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/d1a5a2a68bd44b4f132bc056d7780c5e/bafelim.pdfIn PDF document text
    • http://studiotecnicodambra.eu/userfiles/files/wanebagigu.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/fibumuramatazuz.pdfIn PDF document text
    • https://bishopsalamatkhokhar.org/userfiles/file/90240742753.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2022-3-7/20220307111637784264.pdfIn PDF document text
    • http://abevenement.com/kcfinder/upload/files/jilonuwowudelunowikaxi.pdfIn PDF document text
    • http://www.gpkoaee.ru/ckfinder/userfiles/files/rosigoputuneboso.pdfIn PDF document text
    • http://geteffective.biz/uploadfiles/file/xumuneve.pdfIn PDF document text
    • http://genesisglobalbd.com/assets/ckeditor/kcfinder/upload/files/pifotunagazufivozem.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d9a45b03da---dapiziteluteseruzo.pdfIn PDF document text
    • https://www.nitdgp.ac.in/uploads/userfiles/files/93559152530.pdfIn PDF document text
    • http://labellebeaute.com.hk/ckfinder/userfiles/files/97555668378.pdfIn PDF document text
    • http://bioengenharia.com.br/public/libs/kcfinder/upload/files/gegusovuranebureguxameben.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b15f075794---nikegafedomodujaw.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621118183dbce---91422215485.pdfIn PDF document text
    • http://nemeckystrakac.sk/editor_uploads/files/tovesis.pdfIn PDF document text
    • https://cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/wufowal.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/161fa62ab20826---bodavadilepotebu.pdfIn PDF document text
    • https://aiwcecckolkata.org/FCKeditor/file/turimobalofijerapifaki.pdfIn PDF document text
    • http://355353.ru/userfiles/file/9098720188.pdfIn PDF document text
    • https://fotobolfestmeny.hu/mvc/userfiles/file/99469456688.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_off00039f41.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00039f41.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00039f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39F41 10572 bytes
SHA-256: d517c22987ed35bcdeac6e06e41f8a6775d9dec3f16fc0b63affced7e8f7fc77
font_01_sfnt_off0003b74d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B74D 21532 bytes
SHA-256: afa040f67f7722aaa30f76d2e60e5f3fb4bdf4a77e320f113c9ba510f1815111
font_02_sfnt_off0003efc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EFC5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9