Malicious PDF — malware analysis report

Static analysis result for SHA-256 5292bb824dc765ca…

MALICIOUS

PDF

26.4 KB
MD5: 79e5e334ad6a5de1d22883a7057b3e0c SHA-1: 22b3a4fee4b54571a32902d547aae188bb0bd2ce SHA-256: 5292bb824dc765ca595d16d9188acb9af667f5b63e220830c5af4767731e5c8b
96 Risk Score

Malware Insights

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

The file is a PDF document identified by ClamAV as Pdf.Exploit.Dropped-78. It contains an embedded script payload and an embedded file, indicating it is designed to deliver a secondary malicious component. The presence of XFA form elements and embedded files suggests a potential exploit targeting PDF parsing or rendering 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
0632dc546368d45e3f148f55121c8022414da3ff5c16920ed2b88e67a99b2fd7
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 26241 bytes