Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d37d5e0ae2b0ca2…

MALICIOUS

PDF

287.5 KB Created: 2022-02-06 19:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 96352b4eae301f9ed8b6ad1f028d4cc2 SHA-1: 0c3b46fca1b5e1622dac4f63ae8f3e646b5717a5 SHA-256: 5d37d5e0ae2b0ca26c0698cdc2cadedafeff490cc0ded9316148bc6c1bdcc717
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6694

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://fecuq.co.za/XSRYdR1H?utm_term=cardiogenic+mesoderm+formation PDF link annotation
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/43d2d4f2c78e989e051bcbab0018bbe8/wolewebopiruzepisota.pdfIn PDF document text
    • https://mexico-airport-transfers.com/ckfinder/userfiles/files/dewapadowolinitosemazo.pdfIn PDF document text
    • http://chanhbon.vn/media/ftp/file/fizalozetanuge.pdfIn PDF document text
    • http://goodwynva.com/clients/d/de/de91e19d235d8a3764238851c6b73f99/File/43281288918.pdfIn PDF document text
    • http://4226080.kad.tw/kads/ckfinder/userfiles/files/pexolafode.pdfIn PDF document text
    • http://xn-----6kcftbqgtghjv5bf5gydg7b.xn--p1ai/files/files/96016869596.pdfIn PDF document text
    • https://cpo.artacademyplovdiv.com/cpo_files/file/80798263072.pdfIn PDF document text
    • http://mot-a-mot.fr/kcfinder/upload/files/29858287194.pdfIn PDF document text
    • http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/2278502620.pdfIn PDF document text
    • https://gangnampools.com/contents/files/20872380281.pdfIn PDF document text
    • https://www.caposalasicilia.com/admin/ckeditor/kcfinder/upload/files/72380596100.pdfIn PDF document text
    • http://vertracapital.com/uploads/files/bifalipenipedi.pdfIn PDF document text
    • http://scsxian.com/userfiles/file/20220111064924_mrowiw.pdfIn PDF document text
    • http://gloteckr.com/upload/editor/file/79211299246.pdfIn PDF document text
    • https://drosamahetta.com/userfiles/file/tibitomu.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c0be3ad87de---49985480131.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161ef9d151e95d---xelutilidimi.pdfIn PDF document text
    • http://syscall.com.tr/panel/kcfinder/upload/files/18796768681.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/oon1jspk6u27hjtaavllmccsc3/47833907754.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e07527f3a19---latebuligo.pdfIn PDF document text
    • http://chinalabware.ru/d/files/nitude.pdfIn PDF document text
    • http://vititanon.com/user_img/files/765034131.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/20245954070.pdfIn PDF document text
    • http://ottuk-e.org/userData/board/file/dukipebadozujifixabixuguw.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_off0004155a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004155a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004155a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4155A 10804 bytes
SHA-256: 8bb203c6b3b20695fd7f745a26cb16c6b36886696e543767d401217a64a4b960
font_01_sfnt_off00042e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E11 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004452c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4452C 16212 bytes
SHA-256: 9eed63d1ee1022656246c44bd74f0359bd19aaf790187c1a691814d1aa3b2164