Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c012892f5549ae…

MALICIOUS

PDF

4.2 KB First seen: 2013-06-29
MD5: 73a9cca314a072b5b23e469d77f074ec SHA-1: 0f9aa1c84c7b2bcfabed92a5fafeeae363a0cb25 SHA-256: d9c012892f5549aee549708e2297e6d234bf17895240fe25456d5079614ec8ca
110 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1553.005 Mark-of-the-Web Bypass

The PDF file exhibits characteristics of a malicious document, specifically the presence of an embedded script payload within a stream. This payload, identified as 'embedded_file_obj0008.bin', is highly indicative of an attempt to execute malicious code. The XFA form and embedded file heuristics further support the suspicious nature of this document, suggesting it's designed to exploit vulnerabilities or trick the user into executing the embedded 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 info 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\ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 13052 bytes
SHA-256: 3cc9755b0636555ccc13bf8a023a7abe5ab23178a32ffa819c2585ea0ad01120

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