Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6144be23b0c9c4d…

MALICIOUS

PDF

493.1 KB Created: 2022-04-01 17:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 5ec0ea751d341130640af224ea94763e SHA-1: 819e5aa802b36955d754006cacdec26f3663f97d SHA-256: b6144be23b0c9c4d5bfb20672db94dd0dbfca53539c1c8d42e23e77b18bce594
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4741

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 https://wirut.co.za/XSRYdR1H?utm_term=5e+dnd+languages PDF link annotation
    • http://1666-3668.com/attach/userfiles/file/86419883519.pdfIn PDF document text
    • http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/71044395084.pdfIn PDF document text
    • https://wowemaba.weebly.com/uploads/1/3/1/3/131380083/633e9044d9.pdfIn PDF document text
    • https://irrisyst.eu/files/file/95646043687.pdfIn PDF document text
    • https://bigirafu.weebly.com/uploads/1/3/4/4/134494330/693c083f64eb680.pdfIn PDF document text
    • https://zagesugob.weebly.com/uploads/1/3/4/3/134379314/1909984.pdfIn PDF document text
    • http://lotyzapoznawcze.pl/cms/files/kesozejolekurumesapar.pdfIn PDF document text
    • https://wawotisusuwo.weebly.com/uploads/1/3/2/7/132741293/9b318175b40658.pdfIn PDF document text
    • http://adec-interiors.net/Uploads/file/21613506121.pdfIn PDF document text
    • http://saveondealz.com/ckeditor/ckfinder/core/connector/php/uploads/files/wesededaj.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1620d9f0b13aaa---34631335012.pdfIn PDF document text
    • https://www.invidea.it/kcfinder/upload/files/vatobebarenilazeg.pdfIn PDF document text
    • https://masodorenos.weebly.com/uploads/1/3/0/9/130969057/nakudumerololofos.pdfIn PDF document text
    • http://upnbkk.com/file_media/file_image/file/33785074035.pdfIn PDF document text
    • http://xn--9d0bk1sn6gncq95flql.net/user_data/kcfinder/files/92669820682.pdfIn PDF document text
    • http://gyarmatilovastorna.hu/userfiles/file/rivugetubofezuwudapeve.pdfIn PDF document text
    • http://etalentlink.com/uploadfile/file///2022032120564691.pdfIn PDF document text
    • https://xidexoxopu.weebly.com/uploads/1/3/6/0/136025366/raxif.pdfIn PDF document text
    • http://stefanourso.com/public/userfiles/file/guduvikudirusadetuwine.pdfIn PDF document text
    • https://binemipo.weebly.com/uploads/1/3/0/8/130874238/8936935.pdfIn PDF document text
    • https://nesamakamaxo.weebly.com/uploads/1/3/1/6/131636712/5191641.pdfIn PDF document text
    • https://wilalunawotepa.weebly.com/uploads/1/3/4/6/134608105/bowevelulefok.pdfIn PDF document text
    • https://www.sherpachristain.org.np/ckfinder/userfiles/files/69258912895.pdfIn PDF document text
    • http://defendo.hu/admin/kcfinder/upload/files/98889183269.pdfIn PDF document text
    • https://gitujibexilen.weebly.com/uploads/1/3/1/4/131406430/2af433b502934.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_off00074042.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00074042.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00074042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74042 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00075859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75859 10148 bytes
SHA-256: 8e1dc8a6520da0ece832a8a11dc1ec2d2d3f0f02ca29bb19134f68f1b1f65d04
font_02_sfnt_off00076eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EEE 20888 bytes
SHA-256: ca53685f45e98cf695438971065573ea56ae7642de271bf7599bc8775e81fc45