Malicious PDF — malware analysis report

Static analysis result for SHA-256 984143f2588395d2…

MALICIOUS

PDF

97.0 KB
MD5: 51c2b28f53f4dd77e0de51d9ccee4651 SHA-1: 1706695966e478f8cbda14236958a4ec7333780e SHA-256: 984143f2588395d204f3a721d991a349a6ecde4e76de7c80b7b2a4fa60c2cc1a
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file utilizes XFA forms, a known vector for embedding malicious content. A critical ClamAV heuristic identified it as 'Pdf.Exploit.Agent-6136306-0', indicating a known exploit. An embedded script payload was also detected, suggesting it's designed to download and execute a second-stage payload, though the script content itself was not detailed enough for further analysis. The embedded URLs are related to XFA schema and are not directly malicious.

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
6d61e751798ce57566e6ac805de035e4dbedc7736cd20ca058b1a892af8ee707		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98655 bytes

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