Malicious PDF — malware analysis report

Static analysis result for SHA-256 df38a313dda12de2…

MALICIOUS

PDF

72.1 KB Created: 2021-06-28 08:24:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: ac06238a53b32b16e3c1006e9a3ece56 SHA-1: e1c44b5789dd3f2c47b6bdefc126be5973274a09 SHA-256: df38a313dda12de29030159bdca83b2eba8e5b5283c1997fc012b801640c3a48
124 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely intended to lure users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4729

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://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16087a14c1c5cc---fafaxepeval.pdf In PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/18f8cdf349ae70b1fe80ae369d1fd1cd/lanofod.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/1483c9e977810b97f6c39be7bf4067ed/jirekemer.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/52684971246.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1e3a23af5---mubanuzad.pdfIn PDF document text
    • http://archimax.ch/dynamic-images/cms/file/guvetu.pdfIn PDF document text
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/nsq7gh9kmbf4bq3g7um93ndeb7/77513003660.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/bbd78e38070fbb87d3c6f3c756acbfa0/newisaxoxo.pdfIn PDF document text
    • http://dwhs79.com/clients/15834/File/batopal.pdfIn PDF document text
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608407480ad49---razexaxumalisodi.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/9e052980129ce80fb234ab04e28a73f4/97194035751.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071ab89a2952---70049209083.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/3e25ab24bde2842a4f19aa0c3cba60dc/numedev.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/nf1i9v9mf68d3bb5lbas1vabs6/61961851044.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb6a2201fc---76761838226.pdfIn PDF document text
    • https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089f549c5d2a---94017770875.pdfIn PDF document text
    • https://phuketwebstudio.com/ckfinder/userfiles/files/38625689778.pdfIn PDF document text
    • http://dobrasekacka.cz/userfiles/file/lifepugefuj.pdfIn PDF document text
    • https://sedefartphotography.com/resimler/files/64827451746.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/3kejlfr4tpmkupkcvb22a0s9ht/furomafa.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ad0b5a3a6---88150463099.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f16635a0f---resibowozutu.pdfIn PDF document text
    • http://www.manorbymajor.com/userfiles/files/rupabusiramufuzisokesiro.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160885da6ec1c8---93184285424.pdfIn PDF document text
    • https://soudurelauziere.com/upload/editor/file/batefifidalowonut.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=probability+and+non+probabilityPDF link annotation

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