Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de9079f713cdf9d…

MALICIOUS

PDF

311.9 KB Created: 2022-03-02 21:10:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: ef9d94e982712a8afb1446b311e6b264 SHA-1: a53d36def9de118c9e674ec94ca74ad1a61de7fa SHA-256: 4de9079f713cdf9dff99b6391ddc0d89c2901fb06783b18e518c157e5a686540
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6797

Heuristics 8

  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://sunuf.co.za/XSRYdR1H?utm_term=budgeting+techniques+pdf PDF link annotation
    • https://www.synergyom.com/kcfinder/upload/files/64743919886.pdfIn PDF document text
    • http://phannhan.vn/files/usersfiles/files/54170327237.pdfIn PDF document text
    • http://vidol.eu/userfiles/file/48264921574.pdfIn PDF document text
    • https://residenciasanamaro.es/userfiles/files/87176302136.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/93119892078.pdfIn PDF document text
    • http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/wegopenetabonujopafen.pdfIn PDF document text
    • http://cesvil.it/filesUploads/file/topodulaxaxus.pdfIn PDF document text
    • http://malifer.hu/upload/file/5184104993.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/16236072946.pdfIn PDF document text
    • http://shceping.com/upFile/photos/2022-2/file/buzuzatuzoxemun.pdfIn PDF document text
    • http://westfallassociates.com/documents/file/83327470331.pdfIn PDF document text
    • http://mebelhotel.ru/userfiles/files/39851952212.pdfIn PDF document text
    • http://greatwalledmond.com/ckfinder/userfiles/files/sawuxefisiguxamabis.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/e64d224a00c1fab153cd9da372ed5ead/57288270222.pdfIn PDF document text
    • https://aelma.com/sites/default/userfiles/file/pofuda.pdfIn PDF document text
    • http://simpelms.nl/userfiles/files/2521882167.pdfIn PDF document text
    • https://mehreganimaging.ir/images/upload/files/mikijimumafutemewi.pdfIn PDF document text
    • https://www.jornaloflorense.com.br/admin/ckeditor/kcfinder/upload/files/20779229809.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620326e58f46e---ruwojiwilopuvavirokiralef.pdfPDF link annotation
    • https://xedulichhaiphong.vn/images/news/files/mawokadowobejutabu.pdfIn PDF document text
    • http://ww2.forte.com.pl/js/ckeditor/kcfinder/uploads/files/63473513033.pdfIn PDF document text
    • https://wilgekrans.com/admin/user_files/files/bimibunaj.pdfIn PDF document text
    • https://prosaison.fr/userfiles/files/56164406573.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/raxozi.pdfIn PDF document text
    • http://operahazyborlovagok.hu/browser/files/muferuwujewoxatafol.pdfIn PDF document text
    • http://www.reeder.ee/files/filemanager/xegojugi.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc34518968d---getanojabijox.pdfIn PDF document text
    • http://networkinglikepro.com/ckfinder/userfiles/files/65366615969.pdfIn PDF document text
    • http://gradn.ru/uploades/fckeditorfile/nexogofuz.pdfIn PDF document text
    • https://safetypadlocks.eu/eurostyl/photos/file/60214814989.pdfIn PDF document text
    • http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/96298602490.pdfIn PDF document text
    • http://www.dulichhoaha.com/fckeditor_data/file/veguzigadufiwiz.pdfIn PDF document text
    • http://aktifithalat.com/resimlerfiles/67183390632.pdfIn PDF document text
    • http://www.sircom.org.br/tools/includes/kcfinder/upload/files/mufogomejifukufumamu.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/e4186d6a38cbdf58f98b1aeea31d1990/jizojog.pdfIn PDF document text
    • https://www.paseppe.gr/ckfinder/userfiles/files/23683258264.pdfIn PDF document text
    • http://ideamarketing.abkgrupa.pl/pub/file/mibesimebarivamefuxitaf.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_off0004704a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004704a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004704a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4704A 10772 bytes
SHA-256: 988fcf2e9c881a33506a006c19395e4aca3b4ea27a9edc0f1d7a7711e2dcdb90
font_01_sfnt_off0004887e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4887E 18552 bytes
SHA-256: f616bcf0fd61dd3f3489d9fea0f69a8a29105548416c35816618f699c6e3f6f3
font_02_sfnt_off0004b90d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B90D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9