Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef02a92ddefab1a0…

MALICIOUS

PDF

38.6 KB
MD5: 70bc03e87e24fc465ab00a0c77b837d9 SHA-1: b1f4ecd183a06cae5d7bf8423ad7d946c89c7c57 SHA-256: ef02a92ddefab1a00192034ef792fd4df17e1bfa152b38f61b8a046c13d64b15
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file is detected as a malicious dropper by ClamAV. Heuristics indicate it's an image-only lure designed to trick users into clicking an embedded link. The embedded URL `http://natdrill.com.au/profiles/standard/translations/` is likely the initial point of contact for a phishing or malware delivery chain. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7321708-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7321708-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 38 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 http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off0000125f.bin
20c539b2beaee0e894b8c078fa6681800282d350168861414ad8843af22042ef		 pdf-font-stream PDF embedded font (cff) at offset 0x125F 1861 bytes

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