Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e88122ec8edebbc…

MALICIOUS

PDF

99.5 KB
MD5: fe5e0f54444794bec92fa57cf26953e1 SHA-1: 4f96bd04cf8bd7b7310b240e0745b7a7c113eea2 SHA-256: 7e88122ec8edebbcdfdb1bf899180742d4f020a7b36fcfb0ffb15611150e302f
96 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF XFA image processing. This exploit allows for arbitrary code execution. The PDF also contains embedded script payloads and embedded files, suggesting it's a dropper or exploit delivery mechanism. No specific malware family was identified, but the exploit technique is clear.

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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
1a81e6b0c96bf2da3353ee014ac8de41bf92edbcfab996f4583ec6b0f0c61895
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101170 bytes