Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c935d01f0ceee01…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: 4ad6ba070d6c67da67b4231991e6e36c SHA-1: b856685bd26eab85f04748d4517349ac6438fc3d SHA-256: 3c935d01f0ceee01f62113805a7b252f10aa6c1da021cfc5d63dc90a00f1d6ff
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit allows for arbitrary code execution. The embedded file 'embedded_file_obj0041.bin' is likely the second-stage payload, though its contents were not analyzed.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0041.bin
ea96547dd5df8c27f1f4f6d96565f8405d07f953b4c54181b18f99190379b54f
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9792 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).