Malicious PDF — malware analysis report

Static analysis result for SHA-256 568eee4c6af23d50…

MALICIOUS

PDF

12.0 KB
MD5: 53764e9fcd86928835bcb03a886426f5 SHA-1: bfff4385a29e3ac9b91e7ac229365672bb97af57 SHA-256: 568eee4c6af23d5031dce4549c30b3477552c3eaf9d11dafda656fa6c0b84778
96 Risk Score

Malware Insights

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

The critical ClamAV detection and the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic indicate that this PDF contains an embedded malicious script designed to exploit vulnerabilities. The embedded file artifact further supports the delivery of a secondary payload. The script's obfuscated nature prevents a detailed analysis of its specific actions, but the overall pattern suggests a malicious PDF dropper.

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
b2c32d30d4fc7f37ab78941889c6630feced4ba93014e607c993b31607113b17
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11528 bytes