Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7efc7de2752ac26…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 108ba47166cabcc5c79c5457f18c0eee SHA-1: e2cf0ca8a2a0083aa23427df61cb591ec85b29e6 SHA-256: e7efc7de2752ac260bc28ca420e9a8985b07cb978abeb0a12a052b4ae2b891c5
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious JavaScript T1204.002 Malicious Link: Malicious File

The PDF file contains embedded JavaScript and an XFA form, which are leveraged to exploit CVE-2010-0188 in Adobe Reader. This exploit targets a vulnerability in the LibTIFF parsing within XFA forms, indicating the file is designed to deliver a secondary payload. The embedded file artifact further supports the payload delivery mechanism.

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
b4941c79ea052611aefae464f4eaef5da73ea192a2316f548c171cee5c05ac77
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes