Malicious PDF — malware analysis report

Static analysis result for SHA-256 f195fcbefaf872b7…

MALICIOUS

PDF

5.1 KB
MD5: 825fca00214b9de9d0f75f2e18d397d4 SHA-1: 98797c9f04f12045be0494b8658249c0ddeab18f SHA-256: f195fcbefaf872b75fa1d6ccb4bd00d94290b5a0957162a6bcc0b4c9950ea4db
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ClamAV with the signature Pdf.Malware.Agent-10043168-0. It contains embedded content and an embedded script payload, indicating an attempt to execute malicious code. The presence of XFA forms and embedded files suggests a complex delivery mechanism. The exact nature of the payload is not clear from the provided information, but the heuristics point towards a downloader or exploit delivery.

Heuristics 5

  • ClamAV: Pdf.Malware.Agent-10043168-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Malware.Agent-10043168-0
  • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_000002da.bin
78d5abfc976253e50a82cf65caf6cc791bd9fde44ed32f313debeddeccdbf5f9
pdf-embedded-script PDF decompressed stream script payload at offset 0x2DA 4641 bytes