Malicious PDF — malware analysis report

Static analysis result for SHA-256 11eb788b5cb935dd…

MALICIOUS

PDF

50.8 KB
MD5: c8356b9af3b921f84a41808b3fc00a27 SHA-1: 0db7905ca72b26d1f69ab1654a14930acac63949 SHA-256: 11eb788b5cb935dd61bdf0c177e0e889904f0d649dc22dfc38f232adb41c258f
176 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an exploit targeting Adobe Reader's handling of XFA forms. The presence of an embedded script payload and the ML classifier's high confidence further support this assessment. The exploit likely facilitates the execution of a secondary payload, though the specific nature of that payload cannot be determined from the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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
3ae2fe9b2899bb9494d8807745c8fe212e348abd856684d49510b0372eb826e8		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51303 bytes

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