Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59daba5fa2e3d1f…

MALICIOUS

PDF

97.3 KB
MD5: 28095cc671ac70ccd7f5cd2d4188b654 SHA-1: 8ab2474d59b701ed5a911a2a0b0b85591a695181 SHA-256: e59daba5fa2e3d1f71050d58d95f1bb4347d3598f51d4d67bbd7570461b9a98b
120 Risk Score

Malware Insights

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

The PDF was flagged by multiple high-confidence heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0'. The presence of an XFA form and an embedded script payload indicates a likely exploit attempt. The ML classifier also strongly indicated maliciousness. The embedded script is too large and complex to analyze statically for specific actions, but its presence within an XFA form is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000026c.bin
a890a803a79543008a6391824fa0c4c7a1010e4a965e9efa10cc5ab9215cd122
pdf-embedded-script PDF raw stream script payload at offset 0x26C 98867 bytes