Pdf.Exploit.Dropped-78 — PDF malware analysis

Static analysis result for SHA-256 e62981b7b0579008…

MALICIOUS

PDF

12.0 KB
MD5: 4ae026fe49683d43f2f2e56cdc9a119c SHA-1: 2d843d4dfc3b74cb838184049443d9f3f030fc95 SHA-256: e62981b7b0579008a048a20077b1489e021ee31f642de4dc8e38b893ed39d123
96 Risk Score

Malware Insights

Pdf.Exploit.Dropped-78 · confidence 90%

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

The critical ClamAV detection of 'Pdf.Exploit.Dropped-78' strongly indicates a malicious PDF exploit. The presence of an embedded script payload and an embedded file further supports this, suggesting the PDF is intended to download and execute a second-stage payload. The embedded URLs, while mostly benign or unknown, are part of the PDF's 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
ed51a363359222abd72df9c199bb53dccf264afaa05e6b81dc36e28fc3202cdf
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11528 bytes