Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6208625bd50ce0…

MALICIOUS

PDF

78.4 KB
MD5: 1ca40d480aba993aec722ed76af79d8a SHA-1: 34ef102c66f6b459f62ab4cde7d81f39b8728d74 SHA-256: 6b6208625bd50ce05c8f33bff64101fab34ef10b8c71fa3dcc1d0bc64a952b2f
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms. The embedded script payload and the critical heuristic firing indicate that the file is designed to execute arbitrary code upon opening. While no specific family is identified, the exploit vector points to a malicious document designed for initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low 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.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
8b418cc2985d33192e6575054e2313314ee4c2a2c61343a779460d6251008531		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79516 bytes

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