Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfdb12dd2fb34800…

MALICIOUS

PDF

79.1 KB
MD5: 41722bd979634e496a7378a4989acfb5 SHA-1: 9e6da82859fa00110cbf6bcf51c514d872ac79a4 SHA-256: dfdb12dd2fb3480075ac72267b1e1de3498bd14800c2a1b82702857c0329c8d1
148 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers critical heuristics related to PDF exploits, including ClamAV detections for 'Pdf.Exploit.Agent-6136306-0' and 'Pdf.Exploit.Agent-36769'. The presence of XFA form elements further indicates a potential exploit vector. The embedded script is likely responsible for delivering the malicious 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
9644e1834b8fc0e8301c075cab289fc509d439f14e3f81ab83b3721092b6a478		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 80301 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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