Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c67d0c1b3e9245a…

MALICIOUS

PDF

11.8 KB
MD5: 8e51b58c7fa00359e5247f565aa8d9a2 SHA-1: e47febbc06284282b5a9e595ea5ebb90d89afb4e SHA-256: 3c67d0c1b3e9245a9e4fe8f698000369e72b1cd88a8a9ee6bb3e1deaa06dadbf
96 Risk Score

Malware Insights

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

The PDF file contains embedded script content and is flagged by ClamAV as Pdf.Exploit.Dropped-78, indicating it is designed to exploit a vulnerability and drop a secondary payload. The presence of embedded files and XFA forms further supports its nature as a potentially malicious document. The embedded URLs are not directly indicative of malicious activity but are part of the document'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
31d63d5d70c3bf06162bf121e8fdad9657dacad65d67e8a9fd5066112f338ee9
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11293 bytes