Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ecd51c0f9af142…

MALICIOUS

PDF

11.7 KB
MD5: 7f60241b4de5b46dc2403ed8baaeb232 SHA-1: 6ab15321e3c10c62a386a11c45d834941932c32a SHA-256: 59ecd51c0f9af142cf62cbbe9047bdea134b5fca238179ecc16c7576d4453035
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV detection as Pdf.Exploit.Dropped-78 further confirms its malicious nature. The presence of XFA forms and embedded files suggests a technique to hide or deliver the exploit. 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
f1309be991c9dccb248613d322532a97d9280a86f63fa51e18a56c8245a21a02
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11265 bytes