Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffec8223e360bfd5…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 38ae01fea436fcaebb9d2c8f36b3e187 SHA-1: 2a7e4a43b2e830727e54bc82cc5309db2fc8b066 SHA-256: ffec8223e360bfd501720f0c00712f2ae137aff1a33a5feb2a47ded24992eedb
100 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and an XFA form, which is exploited by CVE-2010-0188. This vulnerability allows for arbitrary code execution, likely to download and run a second-stage payload. The embedded file suggests a dropper functionality. The confidence is high due to the critical exploit firing.

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
decad2f119e46d7bf2f17065d7fa30f574c5edc1e16dc62de5fb418d24229e98		 pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes

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