Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e07de5292996807…

MALICIOUS

PDF

79.1 KB
MD5: 9dbbd47eb31fd756ad309d06a5330c5e SHA-1: b1c394fbd6a3b69f3e9f6214eb09fe9efa96298b SHA-256: 0e07de5292996807d4aba64cf6aa7c30ed07838acfb5d3fca42a4dfeaf2e7e7b
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, which is a known method for executing arbitrary code. The embedded file and script payload markers indicate that the exploit is likely used to download and run a secondary malicious payload. The ML classifier strongly supports a malicious verdict.

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
2fc4f0e2e70880c9b2c0de87d4b8ba8e1951e7b318c7fe898162b64fb652cb12		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80262 bytes

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