Malicious PDF — malware analysis report

Static analysis result for SHA-256 f76988004fbe28ec…

MALICIOUS

PDF

55.9 KB Created: 2021-07-18 07:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: f0af4d6ee223b63d69e16d911aa3d1ef SHA-1: 20097331810c909adef5ce2b7671fc0209bafe60 SHA-256: f76988004fbe28ec2182d937b0cae0e759c08ba90538b2a1eef40dd8e78303de
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5388

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://alacarte-design.de/userfiles/file/79353309245.pdf In PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c4859ec016f---peleduwij.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa91058ad05---fimokafapefolilodoxu.pdfIn PDF document text
    • https://hotelindigha.com/FCKeditor/file/jodiremejujukava.pdfIn PDF document text
    • http://agnieszkapawlik.com/userfiles/file/51318521079.pdfIn PDF document text
    • https://mundolibre.cl/uploads/userfiles/files/43074212934.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fce980c4e1---nepitavorujom.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3f32a5e70f---xuganisisideji.pdfIn PDF document text
    • https://pbchistoryonline.org/uploads/file/41659978965.pdfIn PDF document text
    • http://flywings.sk/UserFiles/file/zasaxiwesovef.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4fedb8b507---liwuwurozemedudavige.pdfIn PDF document text
    • https://unserbiokorb.ch/userfiles/file/12039484054.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607152a1b445c---futixosanotixejibepibus.pdfIn PDF document text
    • http://playitdirect.ca/ckfinder/uploadfiles/files/71636503889.pdfIn PDF document text
    • https://sca-kc.net/scauserfiles/files/vipapubirezuva.pdfIn PDF document text
    • http://thunderstar.cn/userfiles/file/20210519181137673586327.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fffd5b8015---dedag.pdfIn PDF document text
    • http://kimandyoo.com/userfiles/file/godaf.pdfIn PDF document text
    • http://ankaser.com/userfiles/file/30051415979.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/mafira.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-5-6/20210506033132439320.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/4dp3e1hgpqnm9gbn6dqo33ulh6/97979784761.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16092593b87b06---meloxedonojulug.pdfIn PDF document text
    • https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/h68fvvcms9h5lpb1pvtrvvucup/83774555894.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=coconut+oil+and+tea+tree+oil+for+yeast+infectionPDF link annotation

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