Malicious PDF — malware analysis report

Static analysis result for SHA-256 744e16b533853443…

MALICIOUS

PDF

99.5 KB
MD5: 9af49d5e7ccd996dbc13298016d8ffa9 SHA-1: 8096ce32480e3cc4b45fff55753806cca19640ce SHA-256: 744e16b533853443cbd01adf09d2453515ea1ab2383d50953450dec1a5088e67
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 code execution. The embedded script payload and ML classifier further indicate malicious intent. The primary attack vector is likely spearphishing, with the PDF acting as an attachment designed to exploit the reader.

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
5c1d7327e2deee42afe2b65a9f2f39772842edaa873b48ad94539d25cf522ffd
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101185 bytes