Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bb8a7275ea1a2f…

MALICIOUS

PDF

137.7 KB Created: 2021-12-05 16:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: f78b7ae033f7f5481c52095521b85be1 SHA-1: b194b51d20d130968f69d738c91058491257fe62 SHA-256: 72bb8a7275ea1a2f824ff18df95fd83bd28ada3a668ef4d94584428c57dbe9e1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9654

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://podimercrm.com/img/files/48355885992.pdf In PDF document text
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161a3778f0545f---dusexufer.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16180fbfbc312e---29703350036.pdfIn PDF document text
    • http://emaaravm.net/upload/files/nogubefazisofekegotufep.pdfIn PDF document text
    • https://o2opr.co/userfiles/files/54696693191.pdfIn PDF document text
    • http://sriraghavendratemple.com/ckfinder/userfiles/files/23174217816.pdfIn PDF document text
    • http://kavtas.com/images_upload/files/vejujunaxipunenodidut.pdfIn PDF document text
    • http://lifeisartfoundation.org/sites/default/files/images/userfiles/file/5455613897.pdfIn PDF document text
    • http://cheniou.handysociality.com/upload/files/ritetadinusagazokonax.pdfIn PDF document text
    • http://mosjob.ru/images/file/jirorur.pdfIn PDF document text
    • http://3e3i.com/UserFiles/file///65487290065.pdfIn PDF document text
    • http://sujitonweb.com/userfiles/files/tadobo.pdfIn PDF document text
    • http://kpghomerepairs.com/uploads/image/files/52892646872.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/rejapawasafogatasumojijes.pdfIn PDF document text
    • http://orenprom.com/img/account/file/90571236600.pdfIn PDF document text
    • http://thangmayedex.com/webroot/img/files/dapirolididelexib.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137698b455f6---wazavelomepuwitipos.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/2f47eeb5d1065c85f347ea8e858f6196/96262049890.pdfIn PDF document text
    • http://temdientu.vn/images/ckeditor/files/26631947406.pdfIn PDF document text
    • http://jobsandhi.com/uploaded_files/userfiles/files/dafajew.pdfIn PDF document text
    • https://samsungklimalar.com/upload/ckfinder/files/37359562155.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ab05c270e3e---tenijesakudurelivutumuwar.pdfIn PDF document text
    • https://jurvamartin.com/userfiles/file/pukazuwenarosovobag.pdfIn PDF document text
    • http://bagodilovaspark.hu/userfiles/file/lilafinegovifomepakiv.pdfIn PDF document text
    • http://www.tm-africa.com/beta/public/uploads/cms_filescms_files/voxikavad.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/2I9n2o-U8HI/uplcv?utm_term=xbox+live+servicesPDF 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_off0001bec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BEC9 10172 bytes
SHA-256: 236c0559a5f9583247e201ff71c2002953d46b1d6d583361419ccccab696b9af
font_01_sfnt_off0001d5a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D5A8 16800 bytes
SHA-256: 266cec265117556e7ff2d5ad441e915ad902088d880837c66727d3c3422aacc7
font_02_sfnt_off00020189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20189 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336