Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0626a599a43a6a9…

MALICIOUS

PDF

26.1 KB
MD5: 524db5891b2f0644c8bbe9e960660301 SHA-1: ee73910715e44c3543ace9665c1f7f22998be8d4 SHA-256: d0626a599a43a6a9a4b91c5ac5a5149ecfd4a8d493243c01f48a90dc10676b91
96 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The PDF contains an embedded script payload and an embedded file, suggesting it is designed to exploit vulnerabilities and download/execute further malicious content. The presence of XFA form elements and embedded URLs, while some are benign, are common in exploit delivery mechanisms.

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
d5f0400131e9d03eb160fbf16556a2066586371911162a70d8a74459b84a7121
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 25951 bytes