Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bc8cdf32ddb9cb…

MALICIOUS

PDF

82.7 KB Created: 2021-10-23 01:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-02
MD5: cd60663889b470b2cce605d6b18255ce SHA-1: b3c48c64081e4895a12862d2f8785198685f4987 SHA-256: 22bc8cdf32ddb9cb4782d4a77923138df000b495b9f5c15a98a42dfbbc551a52
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16156bf04a8677---19560966011.pdf In PDF document text
    • http://vce34.ru/attachments/file/71711206274.pdfIn PDF document text
    • http://jingkangchem.com/upload/files/daludazofopikisadolem.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba450ea571---pujazuwutiponow.pdfIn PDF document text
    • https://rumputhijau.com/contents/files/juxidenolofekido.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/92442893333.pdfIn PDF document text
    • http://unseenadventure.com/userfiles/file/69259250415.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616a3e0c19357---70567740077.pdfIn PDF document text
    • http://dkstores.gr/userfiles/file/lowuw.pdfIn PDF document text
    • http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/24222987599.pdfIn PDF document text
    • http://jodhpurheritagewalk.com/images/file/14680821969.pdfIn PDF document text
    • http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wokiwegawaburefofatenuwu.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1615406133103a---zujapilolaka.pdfIn PDF document text
    • http://sms-dk.com/FileData/ckfinder/files/20211002_28B979CB9ECA26AF.pdfIn PDF document text
    • https://yakin-surewin.com/media/file/gokes.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616fd4ce1e013---82897788258.pdfIn PDF document text
    • http://baovephuongtroi.com/vietkiendo/upload/file/41151406972.pdfIn PDF document text
    • http://infas.cz/images/wiswig/file/luxuwumazujesudinunadip.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/32240479603.pdfIn PDF document text
    • http://abwsalisbury.com/uploads/files/nomuw.pdfIn PDF document text
    • https://erdenetpost.mn/userfiles/files/31399076379.pdfIn PDF document text
    • https://clubslotalmatriche.com/calcas/file/71925966330.pdfIn PDF document text
    • https://curtain.jinware.com/upload/files/duzagetenoxadoke.pdfIn PDF document text
    • http://asupuro.com/user_data/image/file/64701453480.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BcFPVxLj4jw/uplcv?utm_term=parking+mania+unblocked+games+68PDF 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_off0000df36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF36 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF748 16904 bytes
SHA-256: 97904cba5f3204b41c07c2b8839b9413ae4ad75a87dcb210d011c82244a72688
font_02_sfnt_off000122e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122E9 11324 bytes
SHA-256: 9465893de36532693b9d2a2ad7359a5d3b96766ca3e49562aed2dfb84676613c