Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec1125bddb140d2…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 2cc513057a62a7df1dc99aacd2ab0f3d SHA-1: 2e3332f34b0dd544f18045b3693d799557305ce7 SHA-256: aec1125bddb140d2c9bdd69c8a24d1eeb5e68b7d0fc8043b23ba8129dcf31dd3
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. Specifically, the CVE-2010-0188 heuristic indicates the exploitation of a vulnerability in Adobe Reader's LibTIFF component via an XFA image. This exploit likely leads to the execution of arbitrary code, as suggested by the JavaScript action and embedded file.

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
62600e5ab9f3e7d2b13dbe1b6391d5eee495b63e8ddf046e09a4cccbd4da4584
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes