Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b42580f2eced28…

MALICIOUS

PDF

140.9 KB Created: 2022-04-07 01:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 7eaa1f71641c6b2888b57c90ae3962d3 SHA-1: 1397b64308a560a3bf3d7560e3d2f7a8357d9c62 SHA-256: 72b42580f2eced28c1dfc591b859653139f8ad7f872922f6285d317215c93812
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9499

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://sunuf.co.za/YmrXLWy8?keyword=the%20hobbit%20book%20cover%20original PDF link annotation
    • https://www.xtraordinaire.org/web/kcfinder/upload/files/58778377838.pdfIn PDF document text
    • http://skmsm.com/userData/board/file/84999774682.pdfIn PDF document text
    • http://cnsgawefgl.netsociality.com/upload/files/20666150093.pdfIn PDF document text
    • http://dbexpertise.fr/catalogue_dynamique/file/18746716949.pdfIn PDF document text
    • https://sukonusumetuf.weebly.com/uploads/1/3/5/2/135294143/nozin_lujupeb.pdfIn PDF document text
    • https://benanuvez.weebly.com/uploads/1/3/0/8/130813453/4168c47a1222bfd.pdfIn PDF document text
    • https://marugame.hk/editor_upload/file/95132831657.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20220319025209.pdfIn PDF document text
    • http://jafra-com.at/userfiles/file/7867706838.pdfIn PDF document text
    • http://uk-tk.com/kcfinder/upload/files/kakiwimumuxedulujo.pdfIn PDF document text
    • http://goplayer.net/fil/ckFiles/files/5199747398.pdfIn PDF document text
    • https://miwejezapelo.weebly.com/uploads/1/3/4/3/134342363/jigiki.pdfIn PDF document text
    • https://bojuwidus.weebly.com/uploads/1/3/4/6/134698781/zawebufivilo.pdfIn PDF document text
    • https://kujuxase.weebly.com/uploads/1/3/4/5/134584075/369e260191b6b4.pdfIn PDF document text
    • https://beldapromosyon.com/calisma2/files/uploads/91833073683.pdfIn PDF document text
    • http://indel.sk/userfiles/file/65100951361.pdfIn PDF document text
    • https://mojavewebodaraz.weebly.com/uploads/1/3/1/1/131163943/3976210.pdfIn PDF document text
    • http://lexuspolymers.com/assets/ckfinder/userfiles/files/metarenovefu.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff41e5ca3aa---jebipovufuxefefemiseb.pdfIn PDF document text
    • http://hanahana.vn/media/ftp/file/puretepatidive.pdfIn PDF document text
    • https://nujokolove.weebly.com/uploads/1/3/0/8/130874035/52ecd0.pdfIn PDF document text
    • https://jategolotigani.weebly.com/uploads/1/3/4/8/134882723/minuniwof.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1621c8ba6d8ae2---mibevukiduvatalitaboso.pdfIn PDF document text
    • http://job.nspu.ru/ckeditor/kcfinder/upload/files/noroxu.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c23d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C23D 10600 bytes
SHA-256: 3672e96c893c3279cca6ff5648959749892f249a44820220ed0b4b78b0cb62b4
font_01_sfnt_off0001da72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DA72 19620 bytes
SHA-256: c9cec7c330e1153ca7783b67e473dee0a1a1d091220e662eb056362105e96608
font_02_sfnt_off00020c2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20C2E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1