Malicious PDF — malware analysis report

Static analysis result for SHA-256 395721dcf6061f00…

MALICIOUS

PDF

80.8 KB Created: 2021-07-01 18:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 307efef1be71953b8966ebeb02af9754 SHA-1: ff86acd50672391d273c3d137d3b58e5480fc163 SHA-256: 395721dcf6061f00314c9aea2cb1f44c6d4c9c4c8afdef823a551dbff68f6b05
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains a link farm pointing to compromised WordPress upload directories, suggesting a phishing or redirection attempt. The document body is unreadable, but the presence of numerous links on disposable and compromised hosting indicates a malicious intent to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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 http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d73dcc4060---27970371284.pdf In PDF document text
    • http://munnarinfo.in/userfiles/file/59888140828.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c76b3f1f5cb---nulifanolikajosikepesu.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/48963072b0740c1a9ae50c5bf46ffcb1/37429122089.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/7h2fh0s27e8pic5golbkfvqs12/73190756224.pdfIn PDF document text
    • https://zold-kommando.hu/files/4393111467.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/75d817ec12fbad50ab4f24e48e83dda0/85133170438.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfa632c6e61---21459862643.pdfIn PDF document text
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/ff4dcd0a5d0c5cbb569be842860dd527/47978434723.pdfIn PDF document text
    • https://gamedunyasi.com/calisma2/files/uploads/puxedafikepiruliduwa.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085d00d1f4f1---towupaxenetawofigeporovoz.pdfIn PDF document text
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/d2a746adfa4b3c95b1f414193f864014/91814005610.pdfIn PDF document text
    • https://thietbivesinhanhhuy.com/asset/files/sarufopobasojopidasijal.pdfIn PDF document text
    • http://gdlianyu.com/uploadfiles/file/junevowipupalupugoxe.pdfIn PDF document text
    • http://asztromiskolc.hu/ckfinder/userfiles/files/xodeniboxutitiliziki.pdfIn PDF document text
    • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/0d626d389ec111869e2da19184d3ae0b/gakolitezaremefekit.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/poxevopunokewunelipiw.pdfIn PDF document text
    • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/02137e3271f04123e0150932afbdbab8/kekoraleduferafubitipe.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/34112719858.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/b56b46128598a8e142354c1db6e3060f/jagulebasuvosero.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16077da7ab9567---46256315817.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/47110434047.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=ordinal+scale+isPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD996 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A8 17848 bytes
SHA-256: d48273bf6723f6c004743b19f52c617eb1ed228ccefee39c8f5658b9cda8fc35
font_02_sfnt_off00011fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FB3 10172 bytes
SHA-256: e26a35c621f5c7c2e2e73137636053e95808543086b8be3c8185a6f55b314b47

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