Malicious PDF — malware analysis report

Static analysis result for SHA-256 da945da9d5005e56…

MALICIOUS

PDF

100.5 KB
MD5: 8f817d4f9c71f28d7a74f32c0e997330 SHA-1: b3f307f76d62778fef14ac0ef3bf04f15ab5588c SHA-256: da945da9d5005e56b3833ddc4d98fb92ef255ca972a0a107dba20f5686a9bbaa
148 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: Malicious PDF

The PDF file contains an embedded script payload and triggers critical heuristics related to PDF exploits, specifically identified by ClamAV as 'Pdf.Exploit.Agent-6136306-0' and 'Pdf.Exploit.Agent-36769'. The presence of XFA form elements further indicates a potential attack vector. The embedded script is likely responsible for executing 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_00000246.bin
36ea7fd9fda5e6114350e6be30c982e7e8f4d4f0d45766d99798f6b17d0be8df		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102156 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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