Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3b26e71a04ec9d…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 9671175ef3b44df2d6708e39f1b9ac35 SHA-1: 29572637bd32f7be474aa40bccfb338fd25f74cd SHA-256: fc3b26e71a04ec9d8b86a1b4d402aabe5f04a0e56c17dbb66c25be09e8549529
100 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and is flagged for exploiting CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. This indicates the file is designed to execute arbitrary code upon opening in a vulnerable reader. No specific malware family was identified, but the exploit suggests a downloader or dropper.

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
6c955360fbf277cb9bdf880a9e837dfe71f3eba6f48883bac48d193bfbdca251
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes