Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c81b5e0ade0295…

MALICIOUS

PDF

44.2 KB Created: 2021-08-15 21:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 194db2eec0e892392682f00b3734f10b SHA-1: 38aef0f10fe90f67129f344272cdf0f8c89f577a SHA-256: 36c81b5e0ade02953fdee3d8ea043ee43e7d07152f906e05f8f0e9e01d363bff
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm with numerous URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting an attempt to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, and the document body was unreadable, limiting further analysis of specific payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6809

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://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160847052b82f0---pubufuzotemewo.pdf In PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/dcbd9ed081f9b0396ed02cd26b807a87/torupekepanug.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/sp20ro5noaj3itqn5tjh0r342h/82539081929.pdfIn PDF document text
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ffe2c3d9621---risotulaxipibegig.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160702da0dd66e---tuwidemuwomo.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/7d23971dada9a7ca466710fd83f74c9d/69839509087.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608604a34cf86---xarojemasutonerawisejeda.pdfIn PDF document text
    • http://baovevietnam-vnss.com/upload/file/33219771453.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/83265416332.pdfIn PDF document text
    • http://vimar.ua/userfiles/files/fedegegufaxiterarokilosi.pdfIn PDF document text
    • http://www.cpiequipos.com/assets/images/user_files/files/71533355430.pdfIn PDF document text
    • http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210616041059.pdfIn PDF document text
    • https://asiabiru.com/contents//files/1610477397.pdfIn PDF document text
    • http://schokobrunnen.com/idata/jozomovowasogigepotezup.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/71c008f01bfc51771f3eecff13722a2b/27314172830.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/tifujum.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9676563a80---17595601770.pdfIn PDF document text
    • http://wawa757.com/uploads/files/17258727921.pdfIn PDF document text
    • http://studiosaletta.it/userfiles/files/ronag.pdfIn PDF document text
    • http://koslita.eu/ckfinder/userfiles/files/73793765594.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c99f6416c7---36907728891.pdfIn PDF document text
    • http://allamericannursing.com/userfiles/file/jefib.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16094c26d8d7a2---xawufarevupodowifopoxaw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=cars+1+full+movie+in+hindi+hd+download+movies+counterPDF link annotation
    • http://pro.ovh.net/~tribuene/images/banque/file/sikedodarapov.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.