Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f15926a86618af…

MALICIOUS

PDF

4.2 KB
MD5: 9919041ea94c1816478f7f13a27bd6c7 SHA-1: 170b7b7ac1b5dfbf0798890fab9107f98868fb1b SHA-256: 41f15926a86618af8aa5bcddd3eba63b781688e1a1781584186fddf250d3111e
66 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File Execution T1204.002 Malicious File Execution: Malicious PDF

The PDF file was flagged by a machine learning classifier as malicious with a high confidence score. Static analysis revealed an embedded script payload within a PDF stream, indicating an attempt to execute malicious code upon opening the document. The presence of an embedded file further supports this, likely serving as the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
70f937eeb512764d9a937dd6946b568cd21cd15fcd4c431d50d5c788503573ad
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12930 bytes