Malicious PDF — malware analysis report

Static analysis result for SHA-256 2279c9edf1e949a8…

MALICIOUS

PDF

56.7 KB Created: 2021-06-29 03:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 59615114585ddbdc0e64759ccbcca90e SHA-1: ce231a49e08bf43afc43d3209c130ba974ceae60 SHA-256: 2279c9edf1e949a8c3c6c96f3c63f77323e7129026c4be7b8cb1f9b1b3769eb8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress upload directories, suggesting a phishing or redirection scheme. The PDF's structure and embedded links indicate an attempt to lure users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5757

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 http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070a3935171e---xaropipixuwerelutetagot.pdf In PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abe484471c8---rigotujiju.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb8dab316d---13222609533.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160acbd69a6bb4---raxelowivoxudugiw.pdfIn PDF document text
    • https://mszukam.pl/dat//file/puladizokuma.pdfIn PDF document text
    • http://apvn.info/userfiles/file/moburowasederutasa.pdfIn PDF document text
    • http://omg.su/upload/File/tuzex.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/99933364111.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16080f8e996cb2---babinekadajanape.pdfIn PDF document text
    • https://pharma-tools.eu/galeria/file/posil.pdfIn PDF document text
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/e4abf65607f6332ee07999bca7682ed7/37211582483.pdfIn PDF document text
    • https://trvstore.com/userfiles/file/45375224924.pdfIn PDF document text
    • http://extracam.es/app/webroot/arxius/file/25859742211.pdfIn PDF document text
    • http://kryotherapie.net/neu/userfiles/file/18685809623.pdfIn PDF document text
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/85374317543.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/37876699912.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4f94854f10---22453477926.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/f0517e0cf3323a4e037ef11c87afc8ab/pamotevu.pdfIn PDF document text
    • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/5f9ac1ef42f3ab2226862309db5b9d89/libimim.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16080a29f8eaa2---52904168488.pdfIn PDF document text
    • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/7836bec71214d6e21add762019aecadd/99760140245.pdfIn PDF document text
    • http://mlsconsulting.net/cms/files/File/87943620948.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=quotes+about+getting+a+new+jobPDF link annotation

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