Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b86c08cfc74753…

MALICIOUS

PDF

78.7 KB
MD5: 5ce15159adbcec730a5bbed2388e4717 SHA-1: 175bebeca0b37656a61a4baf8cbcfe6f3703d58f SHA-256: 72b86c08cfc747534ac052ad7291b4a3189f898b213d634766efc2792aebd38b
116 Risk Score

Malware Insights

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

This PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. The exploit is designed to execute arbitrary code, which is commonly used to download and run additional malicious content. The ML classifier strongly indicates maliciousness.

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
7195a3e1399f8fdcc590fd7a9a7391ddf2a09676d12cf2ebee834aebf1468311
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79816 bytes