Malicious PDF — malware analysis report

Static analysis result for SHA-256 6324dede5807b038…

MALICIOUS

PDF

50.6 KB
MD5: c9c89e5dc275b128863b9297a71d8376 SHA-1: 1427687f6dcc16708efc85af356d8cb33e0ed68b SHA-256: 6324dede5807b03878e9b51d5356c074a83e7669867394c1c7e65061a96b1d08
176 Risk Score

Malware Insights

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

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's XFA forms. This exploit is designed to execute arbitrary code, indicated by the critical heuristic firing for this CVE. The ML classifier and ClamAV detection strongly support the malicious nature of this file, classifying it as Pdf.Exploit.Agent-6136306-0. The document body content is obfuscated and does not provide direct clues to the user-facing lure.

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
88b7efc5bee373674c760413fed95bd1ab208d7075a9388772bdd2872eaa8063		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51046 bytes

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