Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbc813ea8fd31827…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: c7555467f32d2c37a690d0e3d5754756 SHA-1: 63afffabd54b751de150f78234295e3a1e995b3e SHA-256: dbc813ea8fd31827aba4ae752839ad64f503a61cbdc74db3cf6deff7beaf081d
100 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that triggers a critical vulnerability, CVE-2010-0188, which is known to exploit Adobe Reader. This exploit is designed to execute a payload, likely leading to further compromise. The presence of JavaScript actions and embedded files further supports the malicious intent of this document.

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
a303509430ce02f7508d4f8f39efd77d90abe5658ce69745ff1fb0efc41d82ca
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes