Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a6f3fc7362a98f9…

MALICIOUS

PDF

12.0 KB
MD5: 8564fe7369dc705818fb9bf5db6e04e5 SHA-1: 0c7897d7eb244360cc785759c7c10394ab324925 SHA-256: 3a6f3fc7362a98f96f115ff82d2decf9c93079cd3831db6303d8192ef13d9ef9
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 a malicious PDF exploit. The presence of an embedded script payload and an embedded file further supports this. While the document body and URLs do not provide direct malicious indicators, the embedded script payload is the primary mechanism for delivering 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
a10e0dbf712654cf172c2d49f05f24351269324beefcb2824c73c8d8113fc99a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 11552 bytes