Malicious PDF — malware analysis report

Static analysis result for SHA-256 0559464a6dbb913b…

MALICIOUS

PDF

99.7 KB
MD5: 3d3bfce1974e5c76ada4283476d296ee SHA-1: a4df6cfd31ed3f0ca7feb91e4d30c25db3f1d94b SHA-256: 0559464a6dbb913b11882e6f064d27ae1cc1e1310a63ba183803c97d75db5f67
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and contains a critical heuristic for CVE-2010-0188, an Adobe Reader exploit. This exploit is likely used to achieve arbitrary code execution, enabling the download and execution of further malicious content. The presence of embedded files and scripts further supports this attack vector.

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
30bc20b832ab359aee8ad5ccbf6395254a1afd4d5ff2619cc6c0b8bad946df57		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101334 bytes

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