Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9c5892fac2c5cd…

MALICIOUS

PDF

70.3 KB Created: 2021-08-05 07:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: eb6fbdf44e74e88f96437d71ed880ec8 SHA-1: 09f94a425ec51bb880914d483e1f9adb1fbf49d4 SHA-256: dd9c5892fac2c5cdfefc5c7ff3712c35750f622f0c44e6e5a0d159feb1f21f58
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Phishing.Trojan. The PDF contains a link farm with numerous URLs hosted on potentially compromised websites, indicating an attempt to direct users to malicious content. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit users through these links, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4816

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://rotarylaspalmas.org/documentos/file/wodaseb.pdf In PDF document text
    • http://aep-tc.com/cache/fck_files/file/42895553756.pdfIn PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/96b3ca464fa13795a5f0aa9e4c3b201b/zejawogoferelivigokal.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1609135c5c0a8d---6856571748.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160791a7f8119c---41966730742.pdfIn PDF document text
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608af53a7c22b---dixikugotanuwuti.pdfIn PDF document text
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/3f152cd3062d6dc588c67b00c81a5540/94345125121.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077cdff4937e---moponakijeweverizora.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/3039a65ba1469e7333e82858dc2fb699/82802121994.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/018641f50aa48b2b0dec6adcac9a38ef/sezululo.pdfIn PDF document text
    • https://bibliothequedesarts.ch/ckfinder/userfiles/files/84623058234.pdfIn PDF document text
    • http://mistral-paints.cz/userfiles/files/gagamexudul.pdfIn PDF document text
    • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/66624016c2b840770a780e3bd6feec73/68233457191.pdfIn PDF document text
    • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/145572fc4ccd592dc3159cec260082a9/68694283272.pdfIn PDF document text
    • https://ka-base.no/images_content/file/mezexowutusi.pdfIn PDF document text
    • https://pakistanchristiancongress.org/userfiles/file/wivopibakizowedugumuxob.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/8c4ee5e82c6d86964864783fa76a626d/10960054836.pdfIn PDF document text
    • https://merydian.pl/nowymerydian/userfiles/file/59148296334.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085038063145---mijowadodis.pdfIn PDF document text
    • http://broadmoor80.com/clients/866172/File/69280041114.pdfIn PDF document text
    • http://diysmart.net/userfiles/file/72121892517.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/27lpqfcnlvil57guas5im9kjfh/xokaziwekogonanugu.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607f9629cb54d---88274579213.pdfIn PDF document text
    • http://bjhtdszdh.com/v15/Upload/file/2021710818421058.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2f9e2a063---xiwugajupenajozibegum.pdfIn PDF document text
    • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/4stnvlm4lekaqbkvr8461o7fsv/13401609410.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=what+is+a+block+style+business+letterPDF link annotation

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