Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb83e04e3ea50996…

MALICIOUS

PDF

342.6 KB Created: 2022-04-06 01:52:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: f3b7d94ef6d2830b03d5c42642f0b0dd SHA-1: 873a366f19cd74892a27ba05f6d9b977fe005594 SHA-256: cb83e04e3ea50996c2f62b757d189c883cb2470ce5fe61ad18db7c98e761f46e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6297

Heuristics 5

  • 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.
  • 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 http://hulstcustoms.ru/uploads/files/mumipamifamabofamox.pdf In PDF document text
    • https://sevenhillsgroup.net/ckfinder/userfiles/files/60166923601.pdfIn PDF document text
    • http://ariege.proximeo.com/ckfinder/userfiles/files/11829209091.pdfIn PDF document text
    • https://atlaskvartir.ua/data/uploads/files/gikoditivaligovobunewe.pdfIn PDF document text
    • http://medcentervrn.ru/userfiles/files/94429949959.pdfIn PDF document text
    • https://rixifumalig.weebly.com/uploads/1/3/1/4/131437092/jozadilo.pdfIn PDF document text
    • https://planet-pvc.com/upload/files/80886061460.pdfIn PDF document text
    • http://www.florentmaussion.net/userfiles/File/buxulejekivutisi.pdfIn PDF document text
    • https://corpusbg.com/files/fck/file/nomububenetuzonex.pdfIn PDF document text
    • https://fadurobudafeme.weebly.com/uploads/1/3/5/9/135959894/e6d2e65ddf4.pdfIn PDF document text
    • http://submission.ksar.kr/pds/userfiles/files/fijinonaneduvolomutolib.pdfIn PDF document text
    • http://agrobud.net/uploaded/file/pukadomala.pdfIn PDF document text
    • http://www.kedokteran.untan.ac.id/asset/ckeditor/plugins/kcfinder/upload/files/xugiruwaxube.pdfIn PDF document text
    • https://jumomemokipus.weebly.com/uploads/1/3/0/8/130874307/a7d6e4e.pdfIn PDF document text
    • http://svazekobciorlice.cz/userfiles/file/92269325800.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162036dd621a60---lomekarekufogazote.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/70904516080.pdfIn PDF document text
    • https://wemunixibabap.weebly.com/uploads/1/3/4/3/134396720/1240420.pdfIn PDF document text
    • http://i-physiology.ru/upload/kimop.pdfIn PDF document text
    • https://xesilowavexaweg.weebly.com/uploads/1/3/4/2/134265648/gufisosojo_pirumexexen_xoboma.pdfIn PDF document text
    • https://promoxcenter.ro/ckfinder/userfiles/files/sipedabararuvaga.pdfIn PDF document text
    • http://vetusmeter.com/images/upload/File/82856954419.pdfIn PDF document text
    • http://freeware-software-download.de/uploads/editor/file/zutalowokamaxufoxegura.pdfIn PDF document text
    • http://okudshava.ru/userfiles/file/85516371628.pdfIn PDF document text
    • http://iproperty.ae/userfiles/file/67267349042.pdfIn PDF document text
    • https://gujejedadun.weebly.com/uploads/1/3/1/3/131398181/1600500.pdfIn PDF document text
    • http://studio-rivetti.it/userfiles/files/feladiz.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=aatagara+kannada+movie+castPDF link annotation
    • 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_off0004d3fb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d3fb.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004ec0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC0C 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off0005020f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5020F 10804 bytes
SHA-256: b7ea5102ec43924aa9354fb38e21fbdcdbd7373817804d93b5dcab516fb57237
font_03_sfnt_off00051aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51ACA 18296 bytes
SHA-256: 89fbe33232a3f8ab9d40ccbb38e32a1230fdc60a8ab2b156c3e9d0bb97177f88