Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d82b3ac506789f…

MALICIOUS

PDF

11.8 KB
MD5: 83da2e8355a7016c49c9694f2dd718f4 SHA-1: cf273a8d163dbb01ab7f68812640fbb53672e110 SHA-256: c2d82b3ac506789f2d4f9d6764bc8cef8769a7435766dc816785c192f68aab76
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file was detected by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit and likely drops a secondary payload. The presence of an embedded script payload and an embedded file further supports this, suggesting the document is designed to trick the user into executing malicious code. No specific family could be identified from the available evidence.

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
988f8970f4facd5b53243cae445f2c9009b47d62519f0e4a050f20f417c0352d
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11313 bytes