Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3413071a58b5bb…

MALICIOUS

PDF

12.1 KB
MD5: 65cd01f4b2590896a0d209e00a95409e SHA-1: 940cf71f8a3f107e9766b3090682d52318a4422d SHA-256: ed3413071a58b5bb68158505adcfd81a97742f663a2225dbcafd747228d72903
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF T1566.002 Phishing: Spearphishing Attachment

The critical ClamAV heuristic 'Pdf.Exploit.Dropped-78' and the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' firing indicate this PDF contains and likely executes an embedded script. The presence of XFA form elements and embedded files further supports its role as a malicious document designed to deliver a payload. The embedded URLs, while not directly malicious, are part of the document's structure.

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
9b074f5aca6c198efb25fb3f3c55c6a00f5750ae19de4569e3982cd0c51c9973
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11636 bytes