Malicious PDF — malware analysis report

Static analysis result for SHA-256 af26c081fbc4f547…

MALICIOUS

PDF

112.7 KB Created: 2021-07-20 22:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 0f3a38051afee5efc1857be1aaa33586 SHA-1: 368c1115ca3aaf25ffd2f7da7bf9dbfc73985edb SHA-256: af26c081fbc4f5479be03610438482420d975a782a01649debe438b076df2a08
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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://pypconsultores.mx/userfiles/file/44701362593.pdf In PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084a3cd8c7f8---biruxefarirowerudupa.pdfIn PDF document text
    • https://argekaucuk.com/nbg/upload/files/muzotemitudekedaxibozuwo.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/novk2ljrfsj78mpit97ni7hduc/80340286725.pdfIn PDF document text
    • http://staropolski.net/Upload/file/dudiwefefu.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb039ee9ba4---betegatapidid.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/nofedafewuverajureregane.pdfIn PDF document text
    • https://capecoralliving.com/media/file/36253333100.pdfIn PDF document text
    • http://www.truca-taoules.com//ckfinder/userfiles/files/mirezavejosinotiji.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/d6c2329024880f2a746c348bdc208361/tarewukotabotubot.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607845b3ea34f---620079484.pdfIn PDF document text
    • https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/gamulawowuvuwupawesogaw.pdfIn PDF document text
    • http://elite-nails.pl/Upload/file/bibazelimobatu.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/e2b0502646f9e1349c1d717fd813ad8d/soterekibasotavokogobi.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f11fc1ee706---midepazama.pdfIn PDF document text
    • http://huerural.com/uploads/image/files/pipepilotuxufixutulemit.pdfIn PDF document text
    • http://ambvet-trefontane.eu/userfiles/files/17094563135.pdfIn PDF document text
    • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/9b8e7d15e2bcd4d03d9b92ab078769c4/mimeforejapibopekowisabe.pdfIn PDF document text
    • http://graviroz.hu/ckfinder/userfiles/files/xajalagonaf.pdfIn PDF document text
    • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/9fea3b1b97c1711c26ac575351045cd4/50112640995.pdfIn PDF document text
    • https://vgi-vn.vn/app/webroot/img/files/rijifazubewatubaki.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/6164d2cb6c2bd6eb123322c47461793e/tagobalonajuvetekugemod.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/88664541562.pdfIn PDF document text
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/66e1a2badfebea6fedfea74191a23efa/69546543510.pdfIn PDF document text
    • http://93564497.com/userfiles/64076724109.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=bfs+and+dfs+examples+and+solutionsPDF 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_off00015553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15553 10812 bytes
SHA-256: c2de105ca547739a11549ab44b0a195b792380f0bdd59f77aefabe72ca765aeb
font_01_sfnt_off00016e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E3B 17764 bytes
SHA-256: bc9ea0348ad99f2a9038a4729af759d443382e6d0336d1cf19183d98e52c20d9
font_02_sfnt_off00019d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D2D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1