Malicious PDF — malware analysis report

Static analysis result for SHA-256 78293ffed5055901…

MALICIOUS

PDF

342.2 KB Created: 2022-02-27 11:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 84031a1d35f7711cc55f13a086f9203b SHA-1: 1491906b1d1ff8e88a2f17f225569b89e36447b4 SHA-256: 78293ffed5055901ae123bfae8a9ae23a5babe1ceadcd9660ccafe86a3cfc247
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6812

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cafij.co.za/XSRYdR1H?utm_term=mycbseguide+class+8+social+science+notes PDF link annotation
    • https://es21sys.com/userfiles/file/32576687434.pdfIn PDF document text
    • http://baovethanglongmb.com/upload/files/lelokuronuj.pdfIn PDF document text
    • https://mkserwis.pl/userfiles/file/6364049132.pdfIn PDF document text
    • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/e4406107e77dba7f559d14f9e8c41d4d/20571286992.pdfIn PDF document text
    • https://nslogisticservice.com/userfiles/files/mofis.pdfIn PDF document text
    • https://4of100churchstreet.com/assets/media/files/rebeluguxege.pdfIn PDF document text
    • http://ms-krmelin.cz/app/webroot/files/files/durapovalepikuwusematat.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1618958d2d51d7---92440764521.pdfIn PDF document text
    • http://kungfubp.hu/admin/assets/images/files/58868786801.pdfIn PDF document text
    • https://parc-hotel.info/file/dixulapif.pdfIn PDF document text
    • http://asbu.net/uploads/FCK_files/file/72863369327.pdfIn PDF document text
    • http://project4power.pl/file_store/68381264537.pdfIn PDF document text
    • http://impactpluslearning.com/ckfinder/userfiles/files/27950712.pdfIn PDF document text
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/ab2873f855a47cb350dd098ec2163720/kulija.pdfIn PDF document text
    • http://lamekatus.com/uploads/ckeditor/files/lefirozumedowej.pdfIn PDF document text
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/mijutebibed.pdfIn PDF document text
    • http://dc-a50e0b1dcb2e.breakthrough-nutrition.com/userfiles/files/12121244212.pdfIn PDF document text
    • http://baikalspring.ru/ckfinder/userfiles/files/zomonupe.pdfIn PDF document text
    • https://comtraining.cl/userfiles/files/magozekimupi.pdfIn PDF document text
    • http://nuuts.mn/uploads/assets/tefudujesumakiser.pdfIn PDF document text
    • http://hotstamping.pl/files/file/zajefidafokipuwi.pdfIn PDF document text
    • https://mpksieradz.pl/upload/file/rosalonopitisevimivi.pdfIn PDF document text
    • http://www.deco-interieure.com/userfiles/file/10169456097.pdfIn PDF document text
    • http://linkingpeople.info/userfiles/file/15750688240.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_off0004ea66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EA66 18156 bytes
SHA-256: 1737bcc6734d3033465a768428eb756b81d50b795e416a02d8f3e68b9fbe77e1
font_01_sfnt_off00051932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51932 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00053052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53052 11000 bytes
SHA-256: f1380cb680cf5a7cc454dc71b26bb8bee74070d147b0a1817f326f50112d9152