Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e0d7c8aa58c0fb…

MALICIOUS

PDF

12.6 KB
MD5: 69ce3fc720fadc8be68a593ab01d89d6 SHA-1: 749fbbf1190a2f14aacaa6b62390b194919b9cb1 SHA-256: a6e0d7c8aa58c0fbbf137cf2cdb9368fa8598ea44a5ca6eb1ffa9f748ad428fb
188 Risk Score

Malware Insights

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

The file is a PDF document that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms and LibTIFF parsing. This exploit is designed to execute arbitrary code, likely leading to the download and execution of a secondary payload. The embedded script and the critical heuristic firings strongly indicate a malicious intent to compromise the user's system.

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
cf3b98a99cd1ff81ea1342a26a9fcdec4f8e33f27c92a96d572ca7ddefa4f62a		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12171 bytes

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