Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9eaca3574245d8a…

MALICIOUS

PDF

2.9 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 16f1cd618fa836da3792611a88313d6e SHA-1: cb1a5c67a6bd0a45702fa6038568b183cfaf572d SHA-256: e9eaca3574245d8a7150f5c83c5f867e8f0101060d8d1f31dccd0c5fdd6d0520
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader's handling of XFA forms and TIFF images. An embedded file, 'embedded_file_obj0004.bin', was also extracted, likely containing the second-stage payload. The presence of JavaScript actions and embedded JS streams further supports the exploitation vector.

Heuristics 8

  • 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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
5346eee7f25849b9eb68bfd0e31fb452bbb43680be9e9c1092a179931bc9ed5a
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 12827 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).