Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ebf7e229d2aa3e…

MALICIOUS

PDF

19.1 KB
MD5: 3d7389cb9c6425c914b09194bf2cbbaa SHA-1: 168711a01dafadf2e8033d4da1fa06a5319706e8 SHA-256: d0ebf7e229d2aa3efdcc2f66eaa694917e6e1514597ebaca83ca5ba87526b360
96 Risk Score

Malware Insights

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

The PDF file contains embedded content and an embedded 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 URLs are not directly indicative of malicious activity, but the presence of an embedded script payload suggests it is designed to download and execute a second-stage 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
99ec6791afe2f7f65080a87e92838229d65737d8f06d0a39aecb80c8e645d452
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18785 bytes