Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd92ff72ec86832f…

MALICIOUS

PDF

19.4 KB
MD5: 883477e16f3fb796fe794c02734696ee SHA-1: 1ee7a14044a193c3825313b0b2e40c9a63328d12 SHA-256: dd92ff72ec86832ff1d563a8a3643480f085c56f90570a50031baca95dd57eba
96 Risk Score

Malware Insights

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

The PDF file contains embedded content and a script payload, as indicated by the PDF_EMBEDDED and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. ClamAV detection as Pdf.Exploit.Dropped-78 further confirms its malicious nature. The embedded file 'embedded_file_obj0008.bin' is likely the delivered payload. The XFA form structure suggests a potential exploit vector.

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
e3d41138b19481fa81248e50c03de97631f5d839d57f37dc3af468ba244b8346
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 19057 bytes