Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d109f20dbd9dfa…

MALICIOUS

PDF

100.4 KB
MD5: 488cb06bd877a8995d9a11f645f8b146 SHA-1: dd5f9744463fbe0755dfeb5f9256b36467c59a71 SHA-256: c6d109f20dbd9dfa4ce41ce49390ec220584430febb4f51d1d80543a746a6b68
148 Risk Score

Malware Insights

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

The PDF document contains an embedded script payload and triggers heuristics related to XFA forms and embedded scripts, indicating it is designed to exploit PDF vulnerabilities. ClamAV detections further confirm its malicious nature. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured.

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
18445b28afc6a2c3b37c73db287a716974d24037025152a0d5790460ca235895		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102042 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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