Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e042b7bed752b8…

MALICIOUS

PDF

99.9 KB
MD5: fe17d1d82a6cd79f8ffdebd7960e23b3 SHA-1: cfe62877cdb6606a811c9b96686ebc215d4a12e1 SHA-256: a0e042b7bed752b8ab6b4092cb1523c97e1c30a9c9db867f830d033a15b2066b
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 component. This exploit allows for arbitrary code execution. An embedded script payload was also detected within a PDF stream, suggesting a multi-stage attack. The embedded URLs are related to XFA forms, which are often used in conjunction with exploits.

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
e0794b3f2bec16f1adee94de156e5766efd66451b345cf96637ef3f1f419f021
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101557 bytes