Malicious PDF — malware analysis report

Static analysis result for SHA-256 d038b050ca486730…

MALICIOUS

PDF

223.6 KB Created: 2021-08-13 04:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: ae1fe71f574902dda7e949c1b03a3d54 SHA-1: ffc7611bce98b6c94ad0edbf02f069ea5e390dba SHA-256: d038b050ca4867303cc45a8432a89492160996039afc8b5e927d808f77626d02
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to host and distribute malicious files. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8621

Heuristics 4

  • 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.
  • 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.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/o2ivbs31erqobu0o11pmnau7oa/nimuwunajoki.pdf In PDF document text
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c5e8378f831---13018075649.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16091c289a8791---63010731706.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b58ed55e367---96532945386.pdfIn PDF document text
    • https://aljuboori.com/userfiles/files/medewi.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/3u6nid9l855glf18p2vdh15oaa/80571339503.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790c7447519---pevutikuvorenakijabofi.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607227f278c44---80599975300.pdfIn PDF document text
    • http://cgpreceptor.com/ckfinder/userfiles/files/nofoborosarujanaximibosoz.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/026c131db0ba620e13bb41ecb0b0239d/salilefefanavagaxelu.pdfIn PDF document text
    • http://banghetretunhien.com/media/ftp/file/10853077025.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160f72f9350af5---nezunekagelokituzubam.pdfIn PDF document text
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0b129723c---51701679151.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607296d103bd5---wivegux.pdfIn PDF document text
    • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/0665a65e2dda7b115f691112169ae74b/64288248437.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/59567fa70118d29ee227bd4d3f0dde7f/89436169428.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086a8396d2ac---mulamigoganafetexizatol.pdfIn PDF document text
    • https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/debidanexofusepukedazibeg.pdfIn PDF document text
    • https://confidence-ist.com/ckfinder/userfiles/files/kulatik.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/jodunogopeziju.pdfIn PDF document text
    • http://plnjl.com/userfiles/files/xusodibelubamedameduxi.pdfIn PDF document text
    • http://aeronautike.com/userfiles/file/xofako.pdfIn PDF document text
    • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/tqcdqto6islv0ilbmfv8g1fiur/tedigabejosomewifopapixi.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160beb81e85af0---81242433224.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=linear+algebra+with+applications+by+steven+j.+leon+9th+edPDF link annotation

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