Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d58d246b888677…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: b3ce0ca0eca9755cc7cb76dbc07c079e SHA-1: 72ecc2f74f843b8dbbaca82f87b4df24c3dd9032 SHA-256: 22d58d246b8886776780011193f4f3652de34fcaf3f022cbc69641e6239ec8be
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The critical heuristic firing indicates exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The presence of embedded JavaScript and an embedded file further supports the malicious nature of the document. The exploit likely serves as a dropper for a secondary payload, although the specific payload is not detailed in the provided evidence.

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
f60238665591886fb8cb66de929e161a2b613b6e402f91bfac3d0f5b759bccbb
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes