Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e349f8e00a05244…

MALICIOUS

PDF

78.1 KB Created: 2021-06-20 12:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 377cac7ca90bd7c111c5f1330411e6d1 SHA-1: 7cbd60adc3b6492db390918c79de6bbfbcae8413 SHA-256: 5e349f8e00a052444c3907a73b9eeb3ac429ad227449fb3a4ff9d9dd3b7a197b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm used to distribute malicious content. The presence of embedded URLs and the overall structure strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9550

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 https://hotnews.md/upload/userfiles/files/wabudubunajefobiz.pdf In PDF document text
    • https://genegurumiraclehealer.comuserfiles/file/pasipil.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d85f1002e9---ridifomuzifewubal.pdfIn PDF document text
    • http://petra-dario.info/upload/datoteke/13070459431.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/tosag.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160926b0a99ded---17111732412.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6dce3925bd---6885219506.pdfIn PDF document text
    • https://agronlogistics.com/userfiles/files/55299357626.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160ae39c96e1e1---20209164925.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/daf0c48af244350e41111cfc7e6fc592/46297226496.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/boropiraropalaselovofa.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/71162376386.pdfIn PDF document text
    • http://travelport.pl/userfiles//file/pajonukomubudabegebu.pdfIn PDF document text
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b576a0025e7---99345528175.pdfIn PDF document text
    • http://josephpowellfamilyreunion.com/clients/0/04/04c15d356d3082020e114f8c0300f46e/File/fomomitukoxojawofawej.pdfIn PDF document text
    • https://bahia-group.com/ckfinder/userfiles/files/6975760584.pdfIn PDF document text
    • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/0bf31da8c043934fdae9e75f6e103296/75514042513.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=sapiens+free+ebook+downloadPDF link annotation

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