Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9627fd5f594254b…

MALICIOUS

PDF

97.3 KB
MD5: f6f734c4bbaabfcf051f0b17cb1de8cf SHA-1: 08842c1e767259728fe4fcd3a3c038e37b27fb53 SHA-256: e9627fd5f594254bf4e1821221c95c47a3e17b233f88219238be7a428308481e
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF was flagged by multiple high-confidence heuristics, including ML classification and ClamAV detection, identifying it as a malicious exploit. The presence of an XFA form and an embedded script payload indicates a likely attack vector for delivering a secondary malicious payload. The embedded script is too large and complex to analyze statically, but its presence is a strong indicator of 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_0000026c.bin
f5100a4252982e3b562fc26158d9c47436ad5ed4edfa9f7f478e78ce83460c4d
pdf-embedded-script PDF raw stream script payload at offset 0x26C 98867 bytes