Malicious PDF — malware analysis report

Static analysis result for SHA-256 025dadd47315426b…

MALICIOUS

PDF

100.0 KB
MD5: 201d5a88c589a7e92a69dedd574f9542 SHA-1: 2cf99c011b2192d59b735cdf0cfc18ab329260fe SHA-256: 025dadd47315426b67970c10635ba9193f97e98cc6d325c3476afedd9e51346c
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 the PDF is designed to exploit a known vulnerability in Adobe Reader's handling of XFA forms. The ML classifier strongly supports this assessment. The embedded file and script payload markers further suggest the exploit is used to deliver additional malicious content.

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
0a26c42d0b4a40e88aee2cfac3b2374b4600eeb3031f140f952ec235ed241524
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101627 bytes