Malicious PDF — malware analysis report

Static analysis result for SHA-256 df853eca5040b65b…

MALICIOUS

PDF

94.1 KB
MD5: 55b8dd348b07a673c2e7299fc3107de8 SHA-1: d7302d6950ac3d4095e683e87bd7452ed55923a5 SHA-256: df853eca5040b65bfa7c0e832a4117f53f348cae4602c5c42bdb88e4bb0c66ca
148 Risk Score

Malware Insights

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

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-6136306-0, indicating a known exploit. It also contains an embedded script payload, a common technique for delivering malicious content within PDF files. The presence of XFA form elements further suggests a potential attack vector targeting PDF vulnerabilities.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_00000246.bin
0f3310c7eba8c3e21af88bf57d8c79ccc10afa2d1e4828ed383d002393bcc1f7
pdf-embedded-script PDF raw stream script payload at offset 0x246 95636 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely