Malicious PDF — malware analysis report

Static analysis result for SHA-256 205959d2a8302d13…

MALICIOUS

PDF

305.7 KB Created: 2022-03-25 04:00:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: bc8645d2fa33c7bdec25bdc0baa5dd6a SHA-1: ef2b6d6450386ea6138e5ca32c4c0b80a337d151 SHA-256: 205959d2a8302d130bb2b2a4d6eba87358969f514dacbd384d84848177949013
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9552

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 http://xn--42-jlclgg6a3e.xn--p1ai/userfiles/file/sunamosebulisijabu.pdf In PDF document text
    • http://isped.net/kcfinder/upload/files/90068595487.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16226ea61cc7c5---77993395581.pdfIn PDF document text
    • https://wickedcheesy.com/images/file/33598533593.pdfIn PDF document text
    • http://dmkert.hu/files/file/98188048767.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/96721738685.pdfIn PDF document text
    • https://optimustelecoms.com/ckfinder/userfiles/files/woditu.pdfIn PDF document text
    • http://vipacademy.org/userfiles/file/69007553091.pdfIn PDF document text
    • http://world-green-hope.com/uploads/files/fomabelep.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622053769f0b5---93932970786.pdfIn PDF document text
    • http://nieruchomoscikomercyjne.co/files/file/69214035403.pdfIn PDF document text
    • http://khachsanmyngoc.com/upload/files/pijaridokuruxisedirusuji.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1623394a6b7996---jasoxexomaxolusi.pdfIn PDF document text
    • http://spellenindex.nl/images/uploads/ximujisazogimotuje.pdfIn PDF document text
    • http://tythb.cn/uploadfile/files/mamezadugi.pdfIn PDF document text
    • https://ooo-kenk.ru/userfiles/file/81583113448.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16201eafb68fec---36850111934.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=saunders+nclex+rn+7th+edition+free+pdfPDF link annotation
    • http://klusjesindex.nl/images/uploads/fuwikasutezesoxizewolage.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_off0004522b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004522b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004522b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4522B 20292 bytes
SHA-256: 23cae9e190486c29f5069acc5ba9bb7abc98efde73e6a377507e7d3750780395
font_01_sfnt_off000487ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x487AD 11044 bytes
SHA-256: da316d16e40c2e297d4dfa32704ab8fe5cb633598567b3726ff82950ba81b67e
font_02_sfnt_off0004a15d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A15D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9