Malicious PDF — malware analysis report

Static analysis result for SHA-256 89469ed85b67f0dd…

MALICIOUS

PDF

11.9 KB
MD5: 77339d98be4c096289a046d9623ebff3 SHA-1: b3879265eef52136b7cab021b2e57c2ca6af34e6 SHA-256: 89469ed85b67f0dd961fb05d1b29887c03e4a3a00ecf6fc5ded6321fe4aad22d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The critical ClamAV detection of 'Pdf.Exploit.Dropped-78' strongly indicates a malicious PDF exploit. The presence of an embedded script payload and an embedded file further supports this, suggesting the PDF is designed to download and execute a secondary malicious payload. The document body content is not user-readable and does not provide further context on the lure.

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
e4f4053e53100aafebb9dfe0bef574a4bc4c9ba64304c12c7bfe9a1bc6cbfe43
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 11421 bytes