Malicious PDF — malware analysis report

Static analysis result for SHA-256 973e22583e277294…

MALICIOUS

PDF

19.4 KB
MD5: 4498b71afada21feedf1e7f57b14a7ba SHA-1: da53ae4a074979d798140ba0960e0d63e8247bd7 SHA-256: 973e22583e277294b57046ef2fa645f596cbd74186344be30092f8df0c157e89
96 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates a malicious PDF exploiting a known vulnerability. The presence of an embedded script payload and an embedded file further supports this, suggesting the PDF is designed to download and execute a second-stage payload. The document body content is not indicative of a specific 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
d70f95cd4c9bf3e821591fd7fca4478702726cfbefdb262d3ff54a4070b7aca1
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 19059 bytes