Malicious PDF — malware analysis report

Static analysis result for SHA-256 1771f24a0521fb73…

MALICIOUS

PDF

99.6 KB
MD5: 89356a3d2c0b7451c9d18899d56d95f5 SHA-1: 09d5c993a644a55edfe812ff2a841e7db8deaba4 SHA-256: 1771f24a0521fb733212b91ff9a5e958bdfa9b9026f1824bf7a17d996c2e5871
116 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The exploit targets XFA forms, which are often used to embed malicious content. The ML classifier strongly indicates maliciousness, and the embedded file suggests a secondary payload delivery mechanism.

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
b8c54ac8f6033783c8f1690ba229066493e91e27801273b26df4a101d5e6d235
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101273 bytes