Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e2d2af06dbe94a…

MALICIOUS

PDF

18.8 KB
MD5: 4de30c02dc29061f00c2f42f98920da5 SHA-1: 864006d9ed385fb3029eeafd7103c9e7ae12b093 SHA-256: c9e2d2af06dbe94a98bc3f5cfb37a6ae60ce96028feab57f5cab645a8922b8e0
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

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. While the document body is obfuscated and contains no clear user-facing lure, the embedded script and file suggest the PDF is designed to execute malicious code, likely to download and run 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
ed8aa84d06d34023278aa36230d4b67fc8ef3b0f784f98ca9366e6ea98ef247c
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18542 bytes