Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e41431417b8c8ac…

MALICIOUS

PDF

79.1 KB
MD5: 5cd958fdf79ec2f597704b44b2c3676a SHA-1: 01f88f254fbb1e046b10dc41fab006a1089a623e SHA-256: 3e41431417b8c8ac578a947cbb4b6f65da5607e19fd64ad76c886b2f3cca9630
148 Risk Score

Malware Insights

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

The PDF file contains an XFA form and an embedded script payload, strongly indicating malicious intent. ClamAV detections confirm this, identifying it as Pdf.Exploit.Agent-6136306-0 and an extracted artifact as Pdf.Exploit.Agent-36769. The embedded script is likely responsible for executing the exploit, leading to the download or execution of a secondary payload.

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_0000023e.bin
79e6af78ce570f73f8544463b65902b6f41bbd97bdb31d73efcbe21c5ab2e9e1		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 80299 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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