Malicious PDF — malware analysis report

Static analysis result for SHA-256 005396c7d8880bdc…

MALICIOUS

PDF

13.1 KB
MD5: 68fb82679b993cb5ccbb28b9f286d903 SHA-1: e7f9a83364de657297eb36162281c5b26d958faa SHA-256: 005396c7d8880bdc18e7863dcf673c6b058f6fcc24e66144d7b72e59f343719f
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The PDF was flagged by an ML classifier as malicious with high confidence. It contains an embedded file and an embedded script payload, indicating an attempt to deliver a secondary malicious component. The presence of XFA forms and embedded URLs further supports its role as a delivery vehicle for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/xci/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
6e4dbe0ea669d4abb2cb78d428f384ae191ddf6a770d68c2f727e0879731721f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD5 12692 bytes

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