Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b7d9f5705d700cd…

MALICIOUS

PDF

49.6 KB Created: 2020-12-26 22:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e9a034878aa0e4730771e1dab615beb SHA-1: dfd0283911494d0d1a2905f80cb9eb4fbd8490c3 SHA-256: 6b7d9f5705d700cdee1da5c7b6eaa77e1a5ccd2ac771c68f6a8d283f733bc95d
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 an image-based lure, likely a screenshot, to entice users to click on an embedded URL. The heuristic 'PDF_IMAGE_LURE' indicates the document's structure is typical of phishing attempts where a full-page image hides a clickable element. The primary IOC is the external URL found within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6502

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 49 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://traffine.ru/aws?utm_term=say+it+again+dexter+meme+template
    • https://cdn-cms.f-static.net/uploads/4374518/normal_5fa2a4d4489bb.pdf
    • https://cdn-cms.f-static.net/uploads/4470825/normal_5fbc426da2092.pdf
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5fd660178ac3d.pdf
    • https://cdn-cms.f-static.net/uploads/4414360/normal_5f981a7d54c64.pdf
    • https://cdn-cms.f-static.net/uploads/4368982/normal_5fd91d4170284.pdf
    • https://cdn-cms.f-static.net/uploads/4454172/normal_5fb54a9cc38b6.pdf
    • https://s3.amazonaws.com/werowibovezoje/18042900183.pdf
    • https://uploads.strikinglycdn.com/files/151b5eed-a5df-405f-bb7d-ff294c51d61e/fujosuzaxaxifipubiw.pdf
    • https://uploads.strikinglycdn.com/files/ecfee6de-2bef-47b9-a700-4378f3c52196/bring_it_on_all_or_nothing_online_fr.pdf
    • https://uploads.strikinglycdn.com/files/3604b73c-a7ae-4f78-a7ed-b77f7c80eadf/lekudetosasedosupo.pdf
    • https://uploads.strikinglycdn.com/files/fa607c00-6c35-4810-870b-c989f1a565d5/96363198162.pdf
    • https://s3.amazonaws.com/rotafasaniz/videneluwimibo.pdf

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