Malicious PDF — malware analysis report

Static analysis result for SHA-256 b628dae8f0ed9d05…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 66738a07db9706eab838e7c84a3be456 SHA-1: 36f93c96c598845e69d9b267128e41d00a3853a0 SHA-256: b628dae8f0ed9d0510b4068639327b1a29bec845e808f33d6d8fe98d57ad9b5d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains embedded JavaScript and an XFA form, triggering heuristics related to PDF exploits. Specifically, the CVE-2010-0188 heuristic indicates exploitation of a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. This suggests the file is designed to deliver a malicious payload upon opening in a vulnerable version of Adobe Reader.

Heuristics 7

  • 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.
  • ClamAV: Pdf.Exploit.Agent-36078 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36078
  • 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
40f3db4ea23a08cd90833fa98537a3c01e83cc8f3482827b299916f440a755fe
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes