Malicious PDF — malware analysis report

Static analysis result for SHA-256 20b25def1a09f296…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: b8c5260d08e9972e93a7282ffc999cd9 SHA-1: 19ff4b890ed1ad8cf627856e2beb81879dafcafa SHA-256: 20b25def1a09f296c39e48d6949d49312f042b616f19208d5d57322b094bcf8c
100 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and an XFA form, which are commonly used to deliver exploits. A critical heuristic identified the CVE-2010-0188 vulnerability, related to Adobe Reader's LibTIFF XFA image handling. This indicates the file attempts to exploit this specific vulnerability to achieve code execution. 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
6363640fdfacea09560cdad133d7c41a1d80a35a6224ef114c6e5280df0b4f0f
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes