Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b71261a01eece0…

MALICIOUS

PDF

18.9 KB
MD5: 9007abacec0a89814779e05619a69e1d SHA-1: 616d192900290e5dddc7827fc6026b5bcb56005a SHA-256: 32b71261a01eece00e64ecd93625e619b55bdcdb9f15cf331a9301fe9ccda63c
96 Risk Score

Malware Insights

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

The PDF file contains embedded script payloads, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. This suggests the document is designed to execute malicious code upon opening. The ClamAV detection of 'Pdf.Exploit.Dropped-78' further confirms its malicious nature. While specific URLs were extracted, they are not directly indicative of the payload delivery mechanism.

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
9d7f37bbde0400761e999575461a37b83ad99df23117c987c074c9ae88071182
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18545 bytes