Malicious PDF — malware analysis report

Static analysis result for SHA-256 00715fc881f08f40…

MALICIOUS

PDF

68.1 KB
MD5: 60df98fa05346a0eb9ada2e032b92510 SHA-1: d8fd2e4ec257a738656282f14e9a06deee9dc593 SHA-256: 00715fc881f08f4088070bd4ea8dcd5dd22fb64de3b2493636747b2aacf5b151
68 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded scripts and is flagged by a machine learning classifier as malicious. The embedded script appears to be obfuscated JavaScript, likely intended to download and execute a secondary payload. The presence of XFA forms and embedded files further suggests a complex attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_000002da.bin
7018038a187296d4c00edd12eea487632e07831dcb2961706f89780ba97f3e75		 pdf-embedded-script PDF decompressed stream script payload at offset 0x2DA 60838 bytes

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