Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3755aa560aa0c5e…

MALICIOUS

PDF

73.4 KB
MD5: 01b02687e579eb879940ee16a0786ab7 SHA-1: 38cde99990b87483d2c56c18298e112fbeee079e SHA-256: d3755aa560aa0c5ea78a8b9a92bfe6dd80d1cc075dd552521da36795a659f877
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to download and execute a second-stage payload. The embedded script marker and the ClamAV detection further confirm its malicious nature. The embedded URL is likely related to the XFA template but does not appear to be a direct payload delivery mechanism.

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
d6c447859a868108d9b1655f77f551f96ab3523795bdbf2334ec2b6159e60a6b		 pdf-embedded-script PDF raw stream script payload at offset 0x34E 74422 bytes

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