Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fe3ad71a816f585…

MALICIOUS

PDF

99.6 KB
MD5: 01a266ad7ce8eeda1bae0f12526345ad SHA-1: d8a2e5af79eee3be8d91669c5426a7a77822becf SHA-256: 0fe3ad71a816f585f98fa7309e6dc820d47b7559d25abe4f47333e87ec9bd830
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains embedded XFA (XML Forms Architecture) data and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. This exploit likely facilitates the execution of a malicious payload, potentially a downloader, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. The ML classifier strongly flags this PDF as malicious.

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
26b443c6159b0c3a2c587dccee2accd6a71472614ca971c89e3fba4d4ed94a5a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101238 bytes

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