Malicious PDF — malware analysis report

Static analysis result for SHA-256 623877e2b8416bb6…

MALICIOUS

PDF

42.3 KB Created: 2020-12-21 00:40:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 20e4389ccf7ac093c2c01d7a37fc9a55 SHA-1: e11ff2ed061c912c131973411a601325d7ac24c9 SHA-256: 623877e2b8416bb620cc28a2214f7222662fccd4b9e91e27ef3f6b731ff7e1b7
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier. It employs a common phishing tactic by presenting itself as an image-based document, likely a screenshot, to entice users to click on an embedded URI. The heuristic 'PDF_IMAGE_LURE' indicates this is a typical shape for a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL. The primary malicious URL identified is https://traffnew.ru/strik?utm_term=fundamentals+of+management+griffin+8th+edition+pdf.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6525

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 42 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://traffnew.ru/strik?utm_term=fundamentals+of+management+griffin+8th+edition+pdf
    • https://cdn-cms.f-static.net/uploads/4480758/normal_5fd6268ab40c4.pdf
    • https://uploads.strikinglycdn.com/files/29f8d86a-97ca-4c23-8709-6ca965c12e0e/brown_brothers_viner_au.pdf
    • https://uploads.strikinglycdn.com/files/a4a17937-b5a9-4240-a6d3-8aa38e669365/vowupukovoti.pdf
    • https://s3.amazonaws.com/gelawiweza/23796630476.pdf
    • https://s3.amazonaws.com/gujutavevive/clarence_larkin_charts.pdf
    • https://uploads.strikinglycdn.com/files/8db89ac3-133e-4bf7-beb4-93cf1771e4f5/sony_bdp_s3500_review.pdf
    • https://s3.amazonaws.com/pibabopuduj/exercices_accents_francais.pdf
    • https://uploads.strikinglycdn.com/files/b470317e-95cb-4ab2-8ca2-fa35ebcde655/zapufo.pdf
    • https://s3.amazonaws.com/tixeligufokup/cash_book_template_excel.pdf
    • https://s3.amazonaws.com/fifomi/18396418336.pdf
    • https://uploads.strikinglycdn.com/files/40a40b69-f2e2-4b92-b46d-6abf39237549/sugimibikisezag.pdf
    • https://uploads.strikinglycdn.com/files/b56883a2-22e3-41e9-8df4-ef2c3bba6643/gawefubepexiv.pdf

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