Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82cb6c1bbde1852…

MALICIOUS

PDF

3.5 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: dc5840f59c5f002e5527579eb8eee3ca SHA-1: b4adc3e3e8b330cb1f07b29ecdbabcc9263e13e4 SHA-256: d82cb6c1bbde1852190de78e174ee9ae8d3767c0b112fac04eb9f9bbb30ff84f
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that contains an embedded XFA form. A critical heuristic firing indicates the presence of the CVE-2010-0188 exploit, which targets a vulnerability in Adobe Reader's handling of XFA images. This exploit allows for arbitrary code execution.

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
e4e36cd9784629461fc1cb05776bbf47b5c40869e0cfe5e1be545ba197026191
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes