Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a55ce4b0b19716…

MALICIOUS

PDF

3.5 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: e13a1347c4220545d42ccae3b4e09603 SHA-1: 7e0dca04c8407cf00fc30ba6c270c8af65cf1ec2 SHA-256: e9a55ce4b0b19716e8c65d0f1ce00b3ab0672138de29a285d627d69aedf27c9d
100 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic match for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF XFA image processing. This exploit is designed to execute arbitrary code upon opening the document. No JavaScript or VBA scripts were extracted, but the embedded file and XFA form suggest a delivery mechanism for a secondary 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
0c1e2b37a8283b2b88a32f1eb275613167e7c7750d07c9e77ed3b61ae8333a09		 pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes

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