Malicious PDF — malware analysis report

Static analysis result for SHA-256 43e2eeea82ef8f45…

MALICIOUS

PDF

26.2 KB
MD5: 754c02de9bc44695b5438e81a3d7d380 SHA-1: 146a9ae2883dd13881f93425e40d88a50cf9fc5f SHA-256: 43e2eeea82ef8f45efe7eddf6ec05d62a09f3fc07963fd018ab6b3a50c991ed3
96 Risk Score

Malware Insights

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

The PDF file contains embedded script payloads and is detected by ClamAV as Pdf.Exploit.Dropped-78, indicating it is designed to exploit vulnerabilities. The embedded script is likely responsible for downloading and executing a second-stage payload. The presence of XFA forms and embedded files further supports its malicious nature.

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
6fe1d48fde0cec8adf5ddc785a573dbb3cf4e80b6a9c27a4cb0cb3fd63e88096
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 26023 bytes