Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a7c0b696cb59da…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 3d080dfbbc155663077feab8e66fd8c0 SHA-1: 8784309f14d1625584c82b6f7014a1eaa82762f8 SHA-256: 40a7c0b696cb59da04d1cbebd722c0ee3d99909ce2fb8e82e4b8f7046e7c0cb8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution

This PDF file contains embedded JavaScript and an XFA form, which are leveraged to exploit the CVE-2010-0188 vulnerability in Adobe Reader. The exploit targets the LibTIFF component within XFA images to execute arbitrary code. The embedded file suggests a secondary payload delivery mechanism, though its contents were not analyzed.

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
c069c8469ba55cd195498b37a58ecf92115f49209cae91cbadcc5201b433d274
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes