Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ec1ffc2c1b3ee2…

MALICIOUS

PDF

11.8 KB
MD5: 6ca4c227212f1ea16566792e4a2e3c7a SHA-1: 82a992a09c5e6ad799cb399308e66287b5955f57 SHA-256: 47ec1ffc2c1b3ee25f4cc5695284f373dea5ac7f68fe46240fb559e5c13432be
96 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit. Static analysis revealed an embedded script payload within a PDF stream and an embedded file object. These components strongly suggest the PDF is designed to deliver a secondary malicious payload.

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
  • 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_file_obj0008.bin
db905e0e2825fc8e4ef5bbd0e12aacc0ba2c9c1beb436797dd43b760d259a568
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11335 bytes