Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ab0f152e2d9969d…

MALICIOUS

PDF

79.4 KB
MD5: d087d75d01027b2e45f70d8e76d367db SHA-1: a662c141db06f9561903ac50f38ad288a76f5848 SHA-256: 8ab0f152e2d9969d13bd8d51359b39232b5bd1b6b7e97120597d79613efeb57d
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample is a PDF document identified as malicious by ClamAV and an ML classifier, indicating it contains an exploit. The presence of an embedded script payload and XFA form suggests the document is designed to execute malicious code upon opening. The embedded script likely downloads and executes a second-stage payload, contributing to the overall malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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_0000023c.bin
d397add68002d7bc6ad295378fdb70d9e6904d805c447a957cb5d924ce61675e		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80624 bytes

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