Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc9e2a03e2ef41c0…

MALICIOUS

PDF

12.0 KB
MD5: 5e23d72c415416729d1aabb4023cead3 SHA-1: 606196c2ab7b83717f436c6df12ac679ad9d89f0 SHA-256: dc9e2a03e2ef41c087ac6a72d2e96468b0f484c435f0a41942a0718a6c1ede5f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The PDF contains an embedded script payload, a common technique for delivering secondary malware. While the script itself is obfuscated and difficult to parse directly, the presence of an embedded file and script points towards a downloader or exploit delivery mechanism. The benign URLs are likely decoys or unrelated to the malicious functionality.

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
68cf4207236afc01552c4a9bc1ad701458db25cef93cc79761244824aa481026
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11575 bytes