Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3cb8ffb792af7be…

MALICIOUS

PDF

79.4 KB
MD5: 7bbbb15bbfd0c54617e4eebda4be7f16 SHA-1: a5d791d972b7815e99690bd963b6082fbabaf2e4 SHA-256: c3cb8ffb792af7beda0e4382faf5496bddf79bef37bf75c6960dba7a5130af3c
88 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers heuristics related to XFA forms and embedded scripts. ClamAV identifies it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for downloading and executing a second-stage payload, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. The presence of XFA form elements suggests a potential avenue for exploit delivery.

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_0000023c.bin
e1123d220aba3133b0d2630fe49f54c3c36532c4f15c820e833dc7b32b105bd2		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80620 bytes

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