Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6718f2d5aeb19f6…

MALICIOUS

PDF

12.0 KB
MD5: 79e195b993682e27df6ecc1066a87589 SHA-1: dc28baedf1d70cf8a8f2c827ce4f89630e18f1dd SHA-256: d6718f2d5aeb19f613bc81b02073665f4f18b0c37d58fcf0bf4be5167ed9bf47
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. The presence of embedded files and XFA forms suggests an attempt to exploit PDF vulnerabilities. The embedded URLs, while not directly malicious in reputation, are part of the document's structure that facilitates the exploit.

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
2b4b1ed2e519ccb8c4d3ea54e06251cbe162929e5b701692b99879b985a81f65
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11532 bytes