Malicious PDF — malware analysis report

Static analysis result for SHA-256 287976f4afd3c61c…

MALICIOUS

PDF

36.7 KB Created: 2021-03-06 10:45:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: af66f04bb94336bd4b18e7f454cd934d SHA-1: 69f96a6aadd3fd0fa1448d345f205ecd04c852a6 SHA-256: 287976f4afd3c61ce61dd8ee5e0da5e6818da3a508855359df03098558a94f31
114 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6329

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://zajinet.ru/award?keyword=wdtv+live+firmware+rollback PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465136/normal_5fe9635498311.pdfIn PDF document text
    • https://juvumumirogo.weebly.com/uploads/1/3/5/3/135313675/xuzimarejeludot.pdfIn PDF document text
    • https://kilekawu.weebly.com/uploads/1/3/4/8/134857711/6f5854f.pdfIn PDF document text
    • https://bukodebavuv.weeIn PDF document text
    • https://s3.amazonaws.com/kotodur/spreadsheet_mac_os_x.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/45861773259.pdfIn PDF document text

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