Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0b28cec7644e18…

MALICIOUS

PDF

12.6 KB
MD5: 88396b9dcebe48fee2d0a4593a71426f SHA-1: 01da46427a663fe1de8547e4c582a3662efde3a2 SHA-256: ca0b28cec7644e181ac5e6d24decb9ed4547a7b3946a0d61034c965a28aa9a8d
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 which is known to be vulnerable to the CVE-2010-0188 exploit. This exploit targets a vulnerability in LibTIFF within Adobe Reader, allowing for arbitrary code execution. The embedded script payload and ClamAV detection further confirm the malicious nature of the file, indicating it's designed to deliver a secondary payload.

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
1985caa2972a38088c255c6b98858438f49a85ddfa0d95a5deb770dd823b146f		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12197 bytes

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