Malicious PDF — malware analysis report

Static analysis result for SHA-256 d262289ceadfb6c3…

MALICIOUS

PDF

74.7 KB Created: 2021-06-27 20:10:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 1dea021108a01b7bb5783f459f408583 SHA-1: c8a5cd805bd4b497049ca7e64e8f26c84c30b7e3 SHA-256: d262289ceadfb6c33a02a983d3a2509d9157c0391d27000beec7cc7cac78e902
124 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDFs. This behavior is indicative of a link farm designed to distribute malicious content, likely for phishing or malware delivery. The ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4734

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.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077469349331---pavine.pdf In PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb0256597e---gegepuwin.pdfIn PDF document text
    • https://tectrongim.com/uploads/files/mazupuja.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/dcc36f38f11d6f8905c382ec09eaede1/kowesatosotexoleg.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/1e53e1b6ee195caf0bf9b2748c4d9a7e/88497738297.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/vovaveletevumet.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/e03r515jvbpq3nqdll5prtbrd1/gigupaduk.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074976bbb66c---gagebi.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/jrjhvrthsveg4mbe8ll3s1gcqm/39144330907.pdfIn PDF document text
    • https://bursac.net/userfiles/file/5891561163.pdfIn PDF document text
    • https://kasihpaham.com/contents//files/24265033880.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/1fiqfr6dpd036jv88jbinsgkht/37926735689.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e1d937b56---guvatibobibuleparimala.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/77157cadb0ad863b1cd6d9393395fc75/92894129237.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/93591369413.pdfIn PDF document text
    • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/eeec0b4ab91abc2c886e4a2dc05cb488/35438245470.pdfIn PDF document text
    • http://logiccpacma.com/ckfinder/userfiles/files/29807296553.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8ff0564cb---mukegow.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b8653fc55cd---11344945954.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a23ac4de50---wejubida.pdfIn PDF document text
    • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/4166c909ae2fd7776488ca56a569c7e2/tiwidifikikojakodoxiwam.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6ac7b3bd9---62147858900.pdfIn PDF document text
    • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/08oe9sturj4ohf6d9r0jt9v49l/45156358629.pdfIn PDF document text
    • https://atamergranit.com/userfiles/file/borimoragux.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/tcgia0q1pmr345jjk88g4kkm76/xekit.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/b9t3dej8q5orcjapc9bgoo337u/99660175100.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=ace2+angiotensin+converting+enzyme+2PDF link annotation