Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd869e67db16ee4…

MALICIOUS

PDF

79.4 KB Created: 2021-09-19 08:21:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 018fa4d18941a875bc68dc6d8bf152b3 SHA-1: dede359ff7c429fb371fc04d10a5707c542d7430 SHA-256: 3dd869e67db16ee42f5bea1e760a11fac9867068474a4b461aeb46aaf0d9f20b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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
  • 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.
  • 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://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130da18d08f0---18168974017.pdf In PDF document text
    • https://h1t-urlaurora1-turbo.com/contents/files/53832426115.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319dd2c8348---zakimajamudasajit.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/r6e42f1vg713l7eemdr2rvu18r/batok.pdfIn PDF document text
    • http://fred-robin.com/ckfinder/userfiles/files/vaneba.pdfIn PDF document text
    • http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/71863780205.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/524e084256536b8a16ec616df784973b/gipemaw.pdfIn PDF document text
    • http://printrun.nl/userfiles/files/fujurex.pdfIn PDF document text
    • https://inunekocp.jp/mailmagazine/upload/files/95839345015.pdfIn PDF document text
    • http://okun.su/upload/file/78169028323.pdfIn PDF document text
    • https://eletmodguru.hu/files/files/tosutunovikodorujisol.pdfIn PDF document text
    • http://dalieuht.com/app/webroot/uploads/files/zutugekemovatijafujazan.pdfIn PDF document text
    • https://khyatiinfotech.biz/ckfinder/userfiles/files/bodox.pdfIn PDF document text
    • https://dovolena-jiznicechy.cz/uploads/kapis.pdfIn PDF document text
    • https://vinamex.info/uploads/news_file/mifot.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4a3759623---53302835607.pdfIn PDF document text
    • http://medica-brno.com/files/vazovusop.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614222daaefc7---86012363135.pdfIn PDF document text
    • https://shiprapublication.com/uniformkontakt/userfiles/image/files/37261211690.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145ff3f95064---92504082879.pdfIn PDF document text
    • http://importfoodfair.com/userfiles/image/2021/09/file/74917210889.pdfIn PDF document text
    • http://sushikyototogo.com/uploads/files/lifujitarodop.pdfIn PDF document text
    • http://yearbookplus.com/uploads/ckfinder/files/kurabupisi.pdfIn PDF document text
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/qgpshc3edujjuv8pfp2puo7d48/wekaw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=9+letter+words+starting+with+fPDF 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 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_off0000d118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD118 10788 bytes
SHA-256: 9f3b166705c211ee04350bf35065b7d212db84df3516c823c03879575d7efb15
font_01_sfnt_off0000e9b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B8 18328 bytes
SHA-256: 33c50e38b687912ba558b3845c2a9a0eac2fb5461f853f3ebfc4290d10e25983
font_02_sfnt_off0001183e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1183E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1