Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d5457bf870ba997…

MALICIOUS

PDF

12.1 KB
MD5: 781f0ebf750378dc184d2076ce907b47 SHA-1: 35c9d42753b8e76143a8198de6ecc61029974c48 SHA-256: 2d5457bf870ba99784b4b967b4b891242811a17ab3ff0607fc10b8d5734017d6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates this PDF is malicious and designed to exploit vulnerabilities. The presence of an embedded script payload and an embedded file further supports this assessment. The embedded URLs are benign or unknown, and the document body is not sufficiently descriptive to infer a specific lure.

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
14a75368d81239d0691802c87c973e8b906fab373d77f8384469333ba0168443
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11636 bytes