Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cbfe474cf9dcb8a…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 00cd39886470e5c3e8aa6f1d5a84dc6e SHA-1: 22de13aac9c8a4c0afaae714a283131bc6ad0298 SHA-256: 3cbfe474cf9dcb8adb1baedb8bbcfe4a29e35fbc3f62e54483b47eb158a606c4
100 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and an XFA form, which are commonly used to exploit vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic firing indicates exploitation of Adobe Reader's LibTIFF XFA image handling. This suggests the document is designed to execute arbitrary code upon opening, likely leading to the download or execution of further malicious content.

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
3724efb922ccd76c3f0319b104c8d6bb64c19378eda0035fa30af4a46c286b6c
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes