Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f62049635a13b0…

MALICIOUS

PDF

129.5 KB
MD5: df4072d8b47dcfa6d90a92f10ec9501f SHA-1: bb15114e21873f9af4326575b458569318f5946d SHA-256: e1f62049635a13b05a3b6015522d5eb72c1acc53ffd7395e5c2b822d7ace0d2f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF contains a direct link to an executable payload disguised as a document update. The heuristic 'PDF_DIRECT_PAYLOAD_LINK' confirms this, indicating the document's primary purpose is to trick the user into downloading and running malicious content. The ML classifier also flagged the PDF as malicious. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6340

Heuristics 3

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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.nevrona.com/rave
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c8c1.bin
626d82bde45d38288ed2f30b7c57b55a45222392e696779ef4a8711eab7d48c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8C1 50731 bytes

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