Malicious PDF — malware analysis report

Static analysis result for SHA-256 429f40c2319f55af…

MALICIOUS

PDF

73.2 KB
MD5: 894084420d73313a12b6f61daeb90685 SHA-1: 9d3544f925dea897f0ca4fe1209e8b9e089bde5a SHA-256: 429f40c2319f55af03960e4f17b08b37dbd9431f3f87e068affd46969731d3c0
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form that leverages the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. An embedded script payload was detected within the XFA form, indicating the file's intent to execute malicious code. The ClamAV detection name 'Pdf.Exploit.Agent-6136306-0' further supports the malicious nature of the file.

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000034e.bin
f043497bec5f7a50aa25cabb82eb7dfbd685bd8c5b0911af0f22e30f1e702ed0		 pdf-embedded-script PDF raw stream script payload at offset 0x34E 74262 bytes

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