Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7bb57b1f8d7d54…

MALICIOUS

PDF

99.7 KB
MD5: ff59c330c0baf1fd620dcd50ac2b3439 SHA-1: 34dc4c1028a2a9eeb426703146301403a80c7f60 SHA-256: ab7bb57b1f8d7d548174dc541ec8495dcf8464d1ef627b16603045ca2de61d01
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The heuristic firings indicate an embedded script payload within a PDF stream, suggesting the PDF is designed to deliver and execute a secondary malicious component. The embedded file and exploit indicate a clear intent to compromise the user's system.

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
7600134a5af1476ef668f3702b90e01b4f4956208423ce4ebf6e2489540187c6
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101320 bytes