Malicious PDF — malware analysis report

Static analysis result for SHA-256 378983ad7fcecc0a…

MALICIOUS

PDF

42.5 KB
MD5: 65b681818f2d7100caf808522fc04323 SHA-1: d12bd9d7f7ca0beb356c5afa6469927c94190ea6 SHA-256: 378983ad7fcecc0a867fcd49dab802c50d1bfb86ffdadd7892b39390340a0331
156 Risk Score

Malware Insights

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

The PDF document contains embedded script payloads and is detected by ClamAV as Pdf.Exploit.Agent-36830. The embedded script is obfuscated, but the presence of PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA heuristics indicates an attempt to execute malicious code. The embedded file artifact further suggests the delivery of a secondary payload.

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
0a8e4cf2555f2c12194779c8c44dc66ba03b0857c111389940cd9e4d14bb2a1a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42765 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.