Malicious PDF — malware analysis report

Static analysis result for SHA-256 30adadb6c80ae922…

MALICIOUS

PDF

11.7 KB
MD5: 79319e15bc8346084ac7d5f8aa43076b SHA-1: cc298cf16c7381c6b1c3835c879b6fa8be2c3b73 SHA-256: 30adadb6c80ae9227127aee5cc5a2407f41bf3c9e7463f5324e8ec7c2a295fb4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded script content, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. This script is likely responsible for delivering a secondary payload, as suggested by the CLAMAV_DETECTION heuristic identifying it as Pdf.Exploit.Dropped-78. The embedded file artifact further supports the payload delivery mechanism. The embedded URLs are benign or unknown and do not appear to be directly involved in the malicious activity.

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
6d402a937560e7d68e1cf6a7464ef7d0ee7053e336a0e256650c30bea3c573d7
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11230 bytes