Malicious PDF — malware analysis report

Static analysis result for SHA-256 1067246698455a34…

MALICIOUS

PDF

62.6 KB
MD5: b38accf259dd79e88f09cc6a70bf131e SHA-1: 0ba13c662dd0d33ad9e5fcbad6d23bc017c81a42 SHA-256: 1067246698455a346e2743afbe5f27315bdb146ee86ec37a9a3241c111639f7f
156 Risk Score

Malware Insights

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

The PDF sample contains an XFA form and triggers the CVE-2010-0188 heuristic, indicating exploitation of a vulnerability in Adobe Reader's LibTIFF component. The embedded script payload further suggests the execution of malicious code. While specific URLs were benign, the exploit itself is the primary indicator of malicious intent, likely leading to the download of a secondary payload.

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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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
abb2e824772cd5129d0a3e5e8c59d91f55f50484bae7884f11ca00b7c2948aff		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 63372 bytes

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