Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c4cc4a1fe34a63…

MALICIOUS

PDF

58.6 KB Created: 2020-12-17 23:54:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e88534bf869eaf7898764285247d2065 SHA-1: 7558e0be50d99fa79f1c37b75eceb1e8ca0c29fd SHA-256: 02c4cc4a1fe34a63f326dc2f2e2f415415dfb905626f5881e64118eaaf01decc
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting the document is designed to lead users to harmful sites. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6203

Heuristics 4

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cctraff.ru/strik?utm_term=ritualistic+sacrifices+plague+small+town In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/laresisif_kigadebokenub_bajutinerid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421210/normal_5fb362f53bd62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375698/normal_5f94760e4c153.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/testy_angielski_b2.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/nagetonofanifomo.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/54888725719.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47ad0d55-2acf-42ff-a322-f0301ed5244a/73353732411.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/66956867925.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/a_room_of_one_s_own_themes.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/learn_korean_book_free_download.pdfIn PDF document text

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