Malicious PDF — malware analysis report

Static analysis result for SHA-256 80af66870171ae08…

MALICIOUS

PDF

16.3 KB
MD5: 375980ae92d3b2261f31b56c6c490b7b SHA-1: d033ebeb40fe273e34ce22d03ab404b0c80b0b4f SHA-256: 80af66870171ae08186e12dca46b19d2fbaebfe10c9700a460cffb2ca3ef8803
188 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form which is known to be vulnerable to CVE-2010-0188, an exploit targeting Adobe Reader. The embedded script payload within the XFA form is likely responsible for executing the exploit. The embedded URL was found within the document text, but its reputation is unknown.

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_00000359.bin
3c17c141b2c0bc60e3cca6a7d3ab01f9b747862c1a63cfbda94788a50fa0e7e8		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15928 bytes

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