Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a2b7af945cee77a…

MALICIOUS

PDF

4.1 KB
MD5: e26fe5bc2034f05ec33a814c6d8a1d25 SHA-1: 2809d35506b68c5231245b8b24c5d306b68e1365 SHA-256: 5a2b7af945cee77a6de0ad045681e79d9b19d720dfdc7da1bf5416ff9c5c9432
116 Risk Score

Malware Insights

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

The critical heuristic firing for CVE-2010-0188 indicates that this PDF exploits a known vulnerability in Adobe Reader's handling of XFA forms. The embedded script payload and ML classifier further support its malicious nature. The exploit likely serves to download and execute a secondary payload, making it a common initial access vector via spearphishing attachments.

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/1.0\
    • 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
7701e3d529470ea2331ef3c1d8ab9dfa5116a3007ddf2880c40a50ab6e8705e9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12559 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.