Malicious PDF — malware analysis report

Static analysis result for SHA-256 625cbe66cfbf144c…

MALICIOUS

PDF

75.9 KB
MD5: 8e703c2dcce60ce9b965b5bb1453feda SHA-1: 56dc9cf7d3c88f2970b36d4f92078a5de4949b5b SHA-256: 625cbe66cfbf144ca30d93bff896b6ba90dd39dbff7b9bcab82ef5515af83c85
176 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The exploit targets a LibTIFF vulnerability within XFA, indicating an attempt to achieve arbitrary code execution. The presence of an embedded script payload further supports the likelihood of a secondary stage being downloaded and executed.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
2fe6498aa81c5f96b73d93f4ebedddcf16a69267bd5484a90072670ef6f3db76		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 76920 bytes

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