Malicious PDF — malware analysis report

Static analysis result for SHA-256 099a592fbaf119fc…

MALICIOUS

PDF

93.9 KB
MD5: 12540a1212e4d520a0f497995a8a1644 SHA-1: 1c36cea099110273bf0d742ac45518551cc07ba1 SHA-256: 099a592fbaf119fc4df701507a6a888773f069f646ac25c6cc81acfa7f2befc4
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded content and triggers a critical heuristic for CVE-2010-0188, indicating an exploit for Adobe Reader. The ML classifier also flagged it as highly malicious. The embedded script, though partially obfuscated, likely contributes to the execution of the exploit.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
9ddfa9025bf69264c0599d19267378400ee747686ec1e581596b91bb0955b0f5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 95416 bytes

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