Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a1fd15c764143d…

MALICIOUS

PDF

131.0 KB Created: 2021-05-20 16:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e288fe6d03a7d774358f8253c1cd7f21 SHA-1: 183e61f65837010392a30150c159d2f679ddb237 SHA-256: 14a1fd15c764143d6bde73da9fd8bff22d4cf0f5c3bb2b83364271bf3ff66cb7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier. It functions as a link farm, directing users to download other PDFs from compromised websites. The presence of numerous links to potentially malicious PDF files suggests an attempt to distribute further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9915

Heuristics 5

  • 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
  • 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.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc65491c79---86075908821.pdf
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078effb3d91a---devemom.pdf
    • https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/72232bc31d512175404a4b427503014a/37049254209.pdf
    • https://munord.com/wp-content/plugins/super-forms/uploads/php/files/13ed85968f5e3381fd5db72fcb8eaa48/60189260998.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16075c35f3b140---90291849380.pdf
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/6ec7d5bece7767b1d6f6c6dbbf37db29/gubamelufinipetumutajebew.pdf
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a39145edf60---64063765302.pdf
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/4ebf36ffe1223097c2fe8decd7a63233/66666422828.pdf
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/959d6f58a00d4a22b3edbef36af4a020/94120058046.pdf
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609298e5d4dbe---wiwodufawotovoxevirozij.pdf
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/b700dd762a9693c22de8d012ff2295e5/rabunolobukudimo.pdf
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/01f2d5e03c7d8e1939a6151988e2e478/zovonalawawosazuvoxab.pdf
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16096773b0f7bc---musibemubetudawize.pdf
    • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608aee797c0a9---dodegidoratapodiviselix.pdf
    • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/lu9epmo2160e1t5ab81m9d4776/dorarobivogufejewujuserer.pdf
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/1c755006afb01015ba6885611e0ac1e5/45104971857.pdf
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/gqt6v3dn41ku135eb5p5n3t8eo/48524968340.pdf
    • https://narimasu-chintai.net/jcfiles/file/gozibodefun.pdf
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/56jojbfm0t7de4281r6j92jbof/noxomiloxinosunaj.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=big+ideas+math+geometry+chapter+10+test+answer+key

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