Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0221d6996908b46…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: ab0ed8f5f77d09986c1d8daceca51b64 SHA-1: a58397f5effd871d4cfa43241cc6aad211ed23ec SHA-256: b0221d6996908b464026b2d103dc62f7892ea7cdf8f6c076d8edd5efd30e37c3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The file is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This exploit allows for arbitrary code execution, likely to download and run a second-stage payload. The embedded JavaScript and XFA form further support the exploitation of this vulnerability.

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
7d0a8c8f0499cadcfc5ea350070d47f3ff9a234d7c6decbfdcf2d9b27cd0c1bc		 pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes

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