Malicious PDF — malware analysis report

Static analysis result for SHA-256 35eee8171669eceb…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: 2244cde887d3f39a738f8dd2fe87274d SHA-1: 6dcf919a7a87780bf7439bec7900feffa0a68e7b SHA-256: 35eee8171669eceb8f1286d444b0022a8f3ad30c0e4103df8be1f7b3890c704f
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1559.001 Component Object Model Hijacking

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is a known vulnerability in Adobe Reader's LibTIFF processing. This exploit allows for arbitrary code execution. The embedded file 'embedded_file_obj0041.bin' is likely the second-stage payload.

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
ed5f5834f45db896dd671e145e4bbfb100932f598f003a192871e6cedf7eef44
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9804 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).