Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8098ae115d0da66…

MALICIOUS

PDF

11.7 KB
MD5: 6a94611f16ebb3e6a64515c4c6b0ad94 SHA-1: f1e9afe8bacdb80dc0c9e0f8bdaa575d69d3f38e SHA-256: e8098ae115d0da661ed10fdccaf6f0a870c75a7769e1047d8fe0da7246bc185e
96 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit. The presence of an embedded script payload and an embedded file further supports this. The exact nature of the exploit and payload cannot be determined due to the lack of readable document body text or script content, but the overall pattern suggests a malicious PDF designed to deliver a secondary payload.

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
770b9ee78759c945d452ef9cc8168b74477eb84093938788e84bb0152cd38126
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11214 bytes