Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c9e544ebdfeea9…

MALICIOUS

PDF

329.5 KB Created: 2022-02-08 23:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: fcfc502d50e36928230e99712ad4b72d SHA-1: cee72f28c2d18179c1dfa09dedbf8092be5950f8 SHA-256: c0c9e544ebdfeea993e63cfda505e55a1dcecdcd36674295d365ec0a6d87e603
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7167

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://podar.co.za/XSRYdR1H?utm_term=affair+song+ringtone PDF link annotation
    • https://thic.net/plugin/ce1/ckfinder/userfiles/files/refegogabolagigozifu.pdfIn PDF document text
    • http://sbcnepal.com/images/file/71289925133.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/43232665442.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f3075a14f23---vapajopewisovisavolorerev.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/70578814918.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a695df133f7---10852838477.pdfIn PDF document text
    • http://baraanduliaptti.org/userfiles/file/vakorezovijugokunale.pdfIn PDF document text
    • http://andersen-racing.com/pictures/editor/files/5633527484.pdfIn PDF document text
    • http://fitsiluet.cz/data/file/57743633426.pdfIn PDF document text
    • http://phutungtdc.com/upload/files/burejafalepukudupopotat.pdfIn PDF document text
    • https://miet.hu/kepek/pamev.pdfIn PDF document text
    • http://wangyiphk.com/userfiles/16635476947.pdfIn PDF document text
    • http://villa-margherita.biz/userfiles/files/18297796630.pdfIn PDF document text
    • http://massageindex.nl/images/uploads/gazur.pdfIn PDF document text
    • http://metisentry.net/ckfinder/userfiles/files/ditunod.pdfIn PDF document text
    • https://austarpharma.austarchina.com/upload/files/14885165734.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/e0c2f746d377cf41fa17ab486b090d8c/5233439320.pdfIn PDF document text
    • http://ski-experience-japan.com/images/blog/file/refirudejeluzarokab.pdfIn PDF document text
    • https://southernwashpros.com/nbloom/fckuploads/file/70251133228.pdfIn PDF document text
    • http://pnl.ac.id/asset/kcfinder/upload/files/96069548914.pdfIn PDF document text
    • https://weilaimachinery.com/userfiles/files/82813587180.pdfIn PDF document text
    • http://manpukulivermore.com/uploads/files/15338066180.pdfIn PDF document text
    • http://giayviettri.com/img-ftec/files/75662680330.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_off0004b983.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004b983.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004b983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B983 10324 bytes
SHA-256: cfb9e3e9cf9c8c22371b963f49e54fd907a5d3063d47c2807a763639de041965
font_01_sfnt_off0004d0f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0F2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004e80d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E80D 18396 bytes
SHA-256: 8c4e622a4c988836053c6b5df2f1a900d70ac6e3ac15472f0020fc2ef34d3ed0