Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ba561183a27f23…

MALICIOUS

PDF

12.1 KB
MD5: 3c2e04f2b19b9f64bbdba14f5c2e9807 SHA-1: d35f5325c860bece50da0f9188b06b53492643d3 SHA-256: d1ba561183a27f23728755ca7f54ed5933fdbf24e6fc1f58218efbce531ac80a
96 Risk Score

Malware Insights

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

The critical ClamAV detection of 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The PDF contains an embedded script payload, suggesting it's designed to exploit vulnerabilities and download further malicious content. The presence of XFA form elements and embedded files are common characteristics of malicious PDFs.

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
8bc13a2307705c595448ad5de77f9b6552b60311779cc9100afdaa2fdd3ce7f9
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 11598 bytes