Malicious PDF — malware analysis report

Static analysis result for SHA-256 764a9fa829b3ede4…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 4d01a55cfc68d8808d75afbd40edec27 SHA-1: d293d1aa6cbf406522ed95d22db0f56f4f4d3886 SHA-256: 764a9fa829b3ede4a5babeff70f23ee140eb4ea5eaf837059d167e1f73b1022b
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit. This vulnerability allows for arbitrary code execution when the PDF is opened in a vulnerable version of Adobe Reader. No JavaScript or other scripts were directly extracted, but the exploit itself is the primary indicator of malicious intent. The embedded file is likely the second-stage payload.

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
b68610139d330af620276e320eaf5b9e91d5c92d0c0a9b36cde732a006958e6d
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes