Malicious PDF — malware analysis report

Static analysis result for SHA-256 979140fd1bcd6b8b…

MALICIOUS

PDF

94.1 KB
MD5: 6596f68b32e55b623676d3f7e247b35f SHA-1: 080898a9c5bc6ea85ccf1bead937fb94e8ce0a77 SHA-256: 979140fd1bcd6b8bc90989764d0db1ba8301bd54a69c120444a9076a60e25449
148 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-6136306-0, indicating it contains an exploit. It also contains an embedded script payload and uses XFA forms, common techniques for delivering exploits in PDF files. The embedded artifact also triggered a ClamAV detection. The embedded URLs are related to Adobe XFA, which is consistent with the XFA form heuristic.

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
2f7ca5029b1bfaa551fdc78ad2cbfe5db65ca936011f1296a701de0ff98cfbc3		 pdf-embedded-script PDF raw stream script payload at offset 0x246 95638 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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