Malicious PDF — malware analysis report

Static analysis result for SHA-256 02fa0a4ccc47da63…

MALICIOUS

PDF

99.9 KB
MD5: d634c127f0d75ab072be7d1cadb87390 SHA-1: 84d058dec7bce56546e0160f83e6b24cbfaa996e SHA-256: 02fa0a4ccc47da63eb0444480cbedf9ad070e65b230e246cc4a35e42fca8baa2
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and exhibits characteristics of exploiting CVE-2010-0188, a known vulnerability in Adobe Reader's XFA forms. This exploit is designed to achieve arbitrary code execution, which is typically used to download and run additional malicious content. No specific malware family could be identified.

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
1bdea4e37c741daa5e0d744cecb937f4305b0c892ceb4138c1fea318837d1108		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101588 bytes

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