Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae042a507e995322…

MALICIOUS

PDF

12.0 KB
MD5: 6bbbc0207b9b4d6ff52db5241b796e45 SHA-1: 9a9ae42ff29cfc39a1ee5ae61d6ab16128be11a5 SHA-256: ae042a507e9953222492f6b689e17449f100029840a274dca17c7f763a549f6d
96 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The PDF contains an embedded script payload, suggesting it's designed to exploit a vulnerability upon opening. While the document body is heavily obfuscated and unreadable, the presence of embedded files and scripts points towards a dropper or exploit delivery mechanism. The embedded URLs are not directly actionable for malicious content but are part of the PDF structure.

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
38d05022670e3c669a9df322b5f63a5fabc774741d7946e7dd16cb94345252e4
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11512 bytes