Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e39c021924193f5…

MALICIOUS

PDF

99.6 KB
MD5: fffcdd69888e61902c2a9487b25dee72 SHA-1: 02efe49c4b22767d0c1e21213ae12bd54ba05103 SHA-256: 3e39c021924193f5e13ee1cdc749a5a6558107b842e188423211505ce9a34ef6
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 related to XFA forms. This exploit allows for the execution of arbitrary code. An embedded script payload was also detected, suggesting the PDF is designed to download and execute a second-stage payload. The embedded URLs are related to XFA but do not appear to be malicious themselves.

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
59c385f220939afff4f4f88bb6a24c6f3668f278547dcd88180d4259fee066f9
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101266 bytes