Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed1bdd4137081c2…

MALICIOUS

PDF

84.4 KB Created: 2021-06-26 15:37:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5f6684efa7b79ec6e094212388086723 SHA-1: 9de64b07bbcf1452c57b4be0167ce14bc8962c23 SHA-256: 2ed1bdd4137081c209469282b3b1b273f9f81890ac28ce908a8db6ee4863f488
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 https://pixomot.ru/uplcv?utm_term=difference+between+total+cost+and+fixed+cost PDF link annotation
    • https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/daa55b5234f6235147d32642b2b56f70/1424235879.pdfIn PDF document text
    • https://shen-su.eu/gfx/userfiles/files/guwevilum.pdfIn PDF document text
    • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f278110ecc---30885363575.pdfIn PDF document text
    • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/t7062tjjej3mlpneer9t9gmqn0/33276781582.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/kazunobavijowuw.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/kevosizafitulipajabitu.pdfIn PDF document text
    • http://dieta-plus.pl/userfiles/file/wikiro.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160b49887a1155---jarapomiwelofane.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a72126253c5---vipabovixolikekojejiwu.pdfIn PDF document text
    • http://parkwaywest1974.com/clients/861606/File/narawadejawo.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/regelopubijitekap.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/4e44e68f158e74daf63d54630cf942b3/83907846558.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6e8d58cf32---watiborepagomavemej.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160941f1b39ace---47668202484.pdfIn PDF document text
    • https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/37d3b161f31cd94b7664d612da9663fd/83167568899.pdfIn PDF document text
    • http://gpmpoolandspa.com/ckfinder/userfiles/files/48782390258.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaa445f22c---72718360276.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160973a262a910---gadawakituvagozajatuxi.pdfIn PDF document text
    • http://clubmaniacr.com/campannas/file/livizupefonupagakeda.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/4io6rjipkl73uri13dghvfer96/powegowub.pdfIn PDF document text
    • 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_off0000e8c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C7 10800 bytes
SHA-256: 63236db865c2a8d66a5a1c7428cf6eed55e7cd04f5288b48df2d5ff4dce3572b
font_01_sfnt_off000101de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101DE 16404 bytes
SHA-256: 5aebdb71a888b333ec1ac3dd9a450d2d83ff2413759809d97cc0910cc1591949
font_02_sfnt_off00012c4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C4E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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