Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfef40ac0b8c731…

MALICIOUS

PDF

360.7 KB Created: 2022-04-19 01:05:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: 6d2e97e50b643319033ea5d41122b74d SHA-1: 11f6e3438688985e25f5a427f42a8c7cc2af511c SHA-256: 6dfef40ac0b8c731492be9128495185c964c9e30f871aa4ffd9e481f66029476
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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://tevav.co.za/XSRYdR1H?utm_term=top+5+problem+solving+tools+pdf PDF link annotation
    • https://monceau.kopro.fr/userfiles/file/vefatowonopi.pdfIn PDF document text
    • https://atrium-architectes.fr/news/files/fenesovitexoranopi.pdfIn PDF document text
    • https://baginemesurewis.weebly.com/uploads/1/3/1/3/131380932/db9322611.pdfIn PDF document text
    • http://lukoilmarine.com/ckfinder/userfiles/files/48323700953.pdfIn PDF document text
    • http://marasintl.com/public/ckfinderuploads/files/nopulavokurarijesowu.pdfIn PDF document text
    • https://sigajijatikad.weebly.com/uploads/1/3/1/3/131379485/2215b53e.pdfIn PDF document text
    • https://paluwewokob.weebly.com/uploads/1/3/2/7/132712057/xipugeziwin-lubuwaz-nimininekoniji.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1623701bcb471f---81792515434.pdfIn PDF document text
    • https://kuzuvofaneze.weebly.com/uploads/1/3/5/3/135394893/falevixokaj.pdfIn PDF document text
    • https://www.italianamaterassi.it/admin/kcfinder/upload/files/legetibojogebiropifodi.pdfIn PDF document text
    • https://sowerijowirikuj.weebly.com/uploads/1/3/1/4/131437515/58487c.pdfIn PDF document text
    • https://xoredanixeg.weebly.com/uploads/1/3/0/8/130814516/3cd809e33158a3.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/13004774637.pdfIn PDF document text
    • https://cira.thinkabit.net/downloads/files/wutojamorimo.pdfIn PDF document text
    • http://frangarcia.eu/upload/file/74506731730.pdfIn PDF document text
    • http://ats-dz.com/userfiles/file/57177311773.pdfIn PDF document text
    • https://nubefumeri.weebly.com/uploads/1/4/1/4/141447041/5193270.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620d93530f34c---fozapira.pdfIn PDF document text
    • https://taxfirma.com/userfiles/file/98622565126.pdfIn PDF document text
    • https://wigimosasalak.weebly.com/uploads/1/3/2/8/132814057/jagaro.pdfIn PDF document text
    • https://wosumugip.weebly.com/uploads/1/3/4/8/134867897/nogojona_fixapaxuvajox_dotisaga.pdfIn PDF document text
    • http://osteriailgalloelinnamorata.com/userfiles/files/55348085211.pdfIn PDF document text
    • https://janilunulosuga.weebly.com/uploads/1/3/0/7/130739392/xofuxorilovaxuvuj.pdfIn PDF document text
    • https://www.fukuyama-ramen.com/editors/kcfinder/upload/files/natojurojejo.pdfIn PDF document text
    • http://e-restauracion.com/app/webroot/files/uploads/files/rufinatovunipudoluwegirid.pdfIn PDF document text
    • https://bugomalaked.weebly.com/uploads/1/3/5/3/135324661/4ff88fe4c.pdfIn PDF document text
    • http://www.tamar.org.br/fotos_news/files/1711656330.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16209ffa130a23---seliwadexan.pdfIn PDF document text
    • https://vogitoroxubas.weebly.com/uploads/1/3/0/7/130739894/nikejijisof.pdfIn PDF document text
    • https://sogilunorigu.weebly.com/uploads/1/3/4/8/134888101/8f0c3.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_off000535ac.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000535ac.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000535ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x535AC 17136 bytes
SHA-256: ea149e5145ebfee10a298de2307f02316574b38edafae98c3413de07fad50639
font_01_sfnt_off00056207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56207 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00057a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A1E 10980 bytes
SHA-256: 5f184ac2543f0951e08a72912bd5068a67c91711b4d18cb41cfa0335f7334d26