Malicious PDF — malware analysis report

Static analysis result for SHA-256 af26dfe5e9fe56be…

MALICIOUS

PDF

94.5 KB Created: 2021-08-13 21:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2486fab1a90bdf404bfea410e41c4463 SHA-1: 2f73b7886cdd8a567c0e2fc2cca745e6ef07da56 SHA-256: af26dfe5e9fe56be7ceb8c585d1612efb9417f2b0a8ba0776e66192fec6ccc8e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

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://avayemehr-carpet.ir/data/file/33849938036.pdf In PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a11bbcd6ba0---bibabogawotajizujezib.pdfIn PDF document text
    • https://mvservice.it/file/ketidikot.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a032d0d6b4b---48148193349.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/1485148418.pdfIn PDF document text
    • http://laros.cz/UserFiles/file/55298282960.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6a5e87e56---16209156507.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077f2d8cfbe4---11049101447.pdfIn PDF document text
    • http://cpghollywood.com/userfiles/files/95800840239.pdfIn PDF document text
    • https://kaptenhoki.info/contents//files/4698119302.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/hj3ab6huv1sppkbd9cjnbggf82/84785390312.pdfIn PDF document text
    • http://bettekingproductions.com/clients/874300/File/nevawonimebirama.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/cd97351dd62b93365c8da176330e067f/60187564115.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa96fa8c9cc---98698136072.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/d7j0k0mrnu4r2dkenbfbspisvf/retaza.pdfIn PDF document text
    • http://brezov-gaj.si/uporabnik/file/37144201564.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/98573858162.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160f85d20e3ede---kuvefi.pdfIn PDF document text
    • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/jphhlthcjlm15ni1jsjvd58o2g/10632474958.pdfIn PDF document text
    • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/niteved.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/79eeddbb2f1796a282f3df790a901a96/21921635356.pdfIn PDF document text
    • https://tranthachcaodanang.com/uploads/image/files/rozekofovebigofe.pdfIn PDF document text
    • http://yer-krasnodar.ru/ckfinder/userfiles/files/10167408084.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/c9dbeb7ac6256f2e002ed9ea71ef270d/10147430539.pdfIn PDF document text
    • http://therealmccoyfamilyreunion.com/clients/f/f9/f9ea119420dddc0cc5ac7622830b9f68/File/22480528893.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079cb28bb452---xexevegivivadavepepu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=taking+cara+babies+abcs+of+sleep+pdf+redditPDF 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_off00010d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D39 17116 bytes
SHA-256: aee809f8e1a59f035edf14bfc905046be91cc20d517bc6b6f72bd91463d1a06c
font_01_sfnt_off00013a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A02 10988 bytes
SHA-256: b6ddf2055a047815d4187ea1d9fbac808507fefc55c388cf02210846ada8c6f9
font_02_sfnt_off00015343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15343 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1