Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa305a1e334c49f8…

MALICIOUS

PDF

423.5 KB Authoring application: Skia/PDF m120 Google Docs Renderer
MD5: 7ea677508ce9ed7d252b47ac4669c976 SHA-1: f7e44017b482885edda87c91e2141df7ddd9daca SHA-256: fa305a1e334c49f878ceaf2e6291d11b2ed0b884160872742b91c0112a3c1765
60 Risk Score

Malware Insights

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

The PDF contains multiple invisible links that lead to a ZIP archive hosted on 'otcworldmedia.com'. This is a common technique for delivering malware. No scripts were extracted, but the heuristic 'PDF_REPEATED_PAYLOAD_LINK_LURE' strongly indicates a malicious intent to trick the user into downloading and executing a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0162

Heuristics 2

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • 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://otcworldmedia.com/DOC757869856647.zip

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000681ff.bin
6302e5e79d9086012ef622c0c9d8c8acb5c27884cac077e8369300f6a8650aeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x681FF 12484 bytes

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