Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5eded201ced0a8c…

MALICIOUS

PDF

11.7 KB
MD5: 74be0135c5ac014f2a29b7f8d6b648ae SHA-1: 40f5dff79c57b092beabc635881ecd9f2fb65c70 SHA-256: e5eded201ced0a8c4052e21491f1c408c1ed9cabae803369cb66001bf5b51bed
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-78. Static analysis revealed embedded script payloads and an embedded file, indicating the document is designed to exploit vulnerabilities and deliver a secondary payload. 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
c2f9b9eb35780324c5f49e90e4dcd2a62b4ea927adcaa818d7b29ce810c5c665
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11242 bytes