Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f4d49245bee47d…

MALICIOUS

PDF

78.9 KB
MD5: 1ad7178f516f1277bc2b9a087c08dc63 SHA-1: c7b6d5625389adebd1937f3cadb23db1504f6c56 SHA-256: 04f4d49245bee47d359106c072f3984c2763c6df1c175af37f8024cba46862ee
116 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit is designed to achieve arbitrary code execution, which is commonly used to download and run additional malicious payloads. The ML classifier strongly indicates maliciousness, and the embedded file suggests a secondary stage is present.

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
b10017affae197c0994a8ddafc874f92eaad93f1b3185123525576412ead7230		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80026 bytes

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