Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d2325fb3811d5af…

MALICIOUS

PDF

109.9 KB Created: 2021-06-29 01:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 69602a0ba9266d2dae28273727011a8b SHA-1: 427a7f5e6879b45ae8ab6dbc69069c03c79d2562 SHA-256: 9d2325fb3811d5afea754c3014be9eb89bd17592d4da2b9d032b885c555667b2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm pointing to numerous compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the structure and URLs imply the document's purpose is to lure users to malicious content hosted on these compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

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://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e53f4ccd17---45086902435.pdf In PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/c29be0c1e41d8215b79f7a811196c509/97318868767.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/2d9ea654fd8124cb15d5ad5a5730ae6a/moxej.pdfIn PDF document text
    • https://remoteyourstaff.com/calisma2/files/uploads/sosufotileb.pdfIn PDF document text
    • http://vyveva.eu/UserFiles/File/67939551974.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086537325c94---vizawugizurudupodujo.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/ql0git9e8re1ttqevp0j8os1fd/lizalufiluvujeg.pdfIn PDF document text
    • http://dges.in/userfiles/file/74069053150.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/0eb9e704c5aecb7e336091e37527ba79/zafowifijefimuritizimo.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/t6j30llql3f5mts42jbclijlci/68160456314.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2abc030e39---19428168522.pdfIn PDF document text
    • http://okulsanmalatya.com/imgup/file/winepavirarusekikedutigid.pdfIn PDF document text
    • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/85mt4158878tob3rg7242e0lnf/35344856142.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/7fa70793bc3b4d520f16bdb86e1563b1/xizerupuvefuja.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088f10152bae---73168046864.pdfIn PDF document text
    • https://beauty-full.ru/uploads/files/74522402130.pdfIn PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/sudivikidubawivurokekuruz.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a7a4780b4---35178949640.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098599994fe6---26172153404.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/5gch75lc9iic8fnnci75lsi47b/bijefuluj.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/1fc37b6c7e8611647a3fdd4af80d6cd9/fulujigelafasowanewezi.pdfIn PDF document text
    • http://mobydick-band.de/fckdata/file/26783212369.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/ddab355d7ef0a18bd5b35f574f3ddea2/rorifuverogesugub.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2778fc0541---gusitabovaxasupanevozix.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=attention+getter+speech+examplesPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13249 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00014a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A5B 17964 bytes
SHA-256: 09adabd48b3b82ca15078b0379e268a35fa8ee3c6b13670351762a7383f6d0d0
font_02_sfnt_off00017994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17994 10904 bytes
SHA-256: 68924c95f9f268eee7dd172b1610b877766e1ba1fd532b05b9689fb62221b99f
font_03_sfnt_off000192af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x192AF 16164 bytes
SHA-256: fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467

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