Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e475fd987e61925…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 45c05c999a4865cb02136c079d1fb2e2 SHA-1: ff345a6280329451629cd5e43317eafba0f72abd SHA-256: 9e475fd987e61925bf995ddf4653666dd5fd1267473adc042ce541b11af58b5a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms and TIFF images, to achieve code execution. The presence of JavaScript actions and embedded JS streams further indicates malicious intent. The exploit targets the LibTIFF component within Adobe Reader, suggesting a drive-by download or a malicious attachment delivery vector.

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
baa2dbac120e8663c6ca8bf9de9a7578a0d4c9914de0a010cd9852c6d158b4ed
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes