Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc4ad2799519528…

MALICIOUS

PDF

12.1 KB
MD5: 602322c300361d99a8598a577f383b7f SHA-1: 826322d85cefcb74635066e85ca48dc7d97f3e36 SHA-256: 8dc4ad2799519528892cf860a56a6375ef0ac62619d7c6a22d8523c1c8b1e330
96 Risk Score

Malware Insights

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

The PDF file contains embedded script content and is flagged by ClamAV as Pdf.Exploit.Dropped-78, indicating it's designed to exploit vulnerabilities. The embedded script payload and the presence of embedded files suggest the document is a lure to download and execute a second-stage payload. The embedded URLs are likely part of the exploit chain or C2 infrastructure.

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
fa4c99b6fbba9f6d51d5b3e96a80001d39c49c40c58abc36761bb7189cb82112
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11682 bytes