Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f5feb70708d36cc…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 58755fae4a67b4598930477d96d5d70f SHA-1: 5db01713a3e9fb6708e6db231a3a26b7df2d466c SHA-256: 4f5feb70708d36cc84b07cb41edad22dce39bc6b9a05b23803b81cbab8ed43b4
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains embedded JavaScript and an embedded file, indicating malicious intent. The critical heuristic firing for CVE-2010-0188 strongly suggests exploitation of a known vulnerability in Adobe Reader via an XFA image payload. This points to an attack pattern focused on client-side code execution.

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
16939cc7f8352ea3e887ea05db2187e38d39111d0b80443233ea4d6953204e57
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes