Malicious PDF — malware analysis report

Static analysis result for SHA-256 e956c51a43207080…

MALICIOUS

PDF

12.0 KB
MD5: 475df6d9b58fa9349bc03e2b270e1e5b SHA-1: a117dff69d9560f2a8693848889f029b5ccd267c SHA-256: e956c51a43207080a6910c6845a5fa30560519d8bf098ce4bf37ecf689e2546c
96 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit. The presence of an embedded script payload and an embedded file further supports this. The attack pattern is likely a malicious PDF designed to exploit vulnerabilities and drop a secondary 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
e476f8bfd09acac708a1e21349b3588565fa969c483dd8f329de2be24d441953
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11493 bytes