Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce378f7802057bf…

MALICIOUS

PDF

79.5 KB
MD5: 24a650401aba4a98ea66e85cdf450efb SHA-1: 495fd42ecf19586d071bb9c11301e0816b2373b0 SHA-256: 5ce378f7802057bf374679e22dd0005df826b0f1d28a3af77a0f421a012e4996
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms, to achieve arbitrary code execution. The presence of an embedded file and the ML classifier's high confidence further indicate malicious intent. The exploit likely serves as a dropper for a secondary payload, though no specific family is identifiable from the provided data.

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
e96b60bb83d68737e5536f02c9736623929acb1e82e4b15012a76c891ccae464
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80654 bytes