Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7a927dad35ed85c…

MALICIOUS

PDF

11.7 KB
MD5: 6b63430dbb6667e410d08d8bdc4644be SHA-1: eaa03d9f4e7dc03db32e38e88b87551b86fb1e53 SHA-256: d7a927dad35ed85cafa6e6318424d134d79a0099b2754ef1b4080efa5df18ba3
96 Risk Score

Malware Insights

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

The PDF file contains embedded content and an embedded script payload, as indicated by the PDF_EMBEDDED and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. ClamAV detection as 'Pdf.Exploit.Dropped-78' strongly suggests it's a known exploit dropper. The embedded URLs are benign or unknown, and the document body is not human-readable, providing no further context on the 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
9778a008a98a734106db023a69f22071bbff0b3d63d4670a0d280ee388ab0afb
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11206 bytes