Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f540a379954b58…

MALICIOUS

PDF

19.4 KB
MD5: 9131158e4834271c7219bb1d37b5406f SHA-1: e1ab0af69a62565a5d5a813c8d5449acc007aa17 SHA-256: e0f540a379954b58d9ea25a9a5314a8aadd0a4b6dd05de375879671e45807ce1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

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 drop and execute a secondary malicious payload. The document body content is obfuscated and does not provide further clues to the 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
afd30378d8869d76d1250d1b6c7346e5f518894c2eeca987ac471ac52cecbd1a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 19131 bytes