Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd794fc6aed21564…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 1ccceea1942bcd2b0ad7bcee1b208656 SHA-1: b0d3afb8c00455c780f383e8da9e10b23952edc1 SHA-256: cd794fc6aed215642caca814bdc6e28918313d23a61f94c95a48bac0b274e3f8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and an embedded file, indicating a malicious intent. A critical heuristic identified the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF XFA image handling. This suggests the document is designed to exploit this vulnerability upon opening, likely to download and execute a second-stage payload.

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
f46a57b394abf5bbbc70428086ae4e67064381c22481d9d91c5bf67d437746dc
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes