Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb42dd817f3e340…

MALICIOUS

PDF

88.3 KB Created: 2021-07-16 04:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6eca57c755d214351bcb980311a27922 SHA-1: 87c6b0e156aea796d9d4ad5ae2d7fad4a9e9abbf SHA-256: 9eb42dd817f3e340e322f7aa3fd05e426d89dcadc21915012f82307a74917f05
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious. It contains a link farm pointing to potentially compromised WordPress upload directories, suggesting it's designed to host or distribute malicious content. The presence of urgency language further supports a phishing or social engineering attack vector. Although no scripts were explicitly extracted, the PDF structure and link farm indicate a likely attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160947a85b4701---20960510118.pdf In PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/6b4205e66300a4ca333989be1b0d4cf5/9818251133.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16091fa58e9e2f---zolekuburifamojuw.pdfIn PDF document text
    • http://starrsgazette.com/admin/images/file/15953247601.pdfIn PDF document text
    • http://ed-web.cz/userfilesfile/38517095458.pdfIn PDF document text
    • https://loctra.net/userfiles/file/wobukimibe.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/80c05afe65928b3d61873ef7fa94bc78/nexejolujojunepetenixiv.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-6-19/20210619174840156797.pdfIn PDF document text
    • http://promador.pl/userfiles/file/13908430984.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///1506436794.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d2eb97b1e---jojotobolozaja.pdfIn PDF document text
    • http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/41412589057.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846ca7d34ae---nupan.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16078a44c44efe---bazajofewarejekujoxezokex.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e9add181b---temepajulapusenexe.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a7556d40be3---pufedexuzife.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/5f5d1d1ce805f5636dd9d4aeb34a322f/zijakipuzekukiligovowob.pdfIn PDF document text
    • https://mfdesign.hu/files/file/97851409566.pdfIn PDF document text
    • http://lhsclassof68.com/clients/73441/File/sukapinaroxizifexiwo.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b59ced3095e---80503118055.pdfIn PDF document text
    • http://apartmaji-zunicmile.com/uporabnik/file/85241129693.pdfIn PDF document text
    • http://marketherballize.com/ckfinder/userfiles/files/gofuruguxobiran.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f0619f0e0ad---pomisemow.pdfIn PDF document text
    • http://rhondachem.com/d/files/27251203593.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=dr+phil+anorexiaPDF 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_off0000fa5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11270 16728 bytes
SHA-256: cce63753a509bf38cb272e2f766c62e6e0115cc192b85a042bb87fc24bc3d278
font_02_sfnt_off00013de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DE1 10184 bytes
SHA-256: 8e9ef557111c14df895cedcf9b354ccd2ec74bd706295c40725c208136cb4ace

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