Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfcfb311a55eaabd…

MALICIOUS

PDF

12.7 KB
MD5: fe0372f1dedd4cc9267afb3f7f1b1cd1 SHA-1: 31b5226a52800b429c327af1082c0c2dccf89b44 SHA-256: bfcfb311a55eaabd1f26ad67daeaf44e0823e348943387b8562114ee2402f3c1
148 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 known vulnerability in Adobe Reader related to XFA forms. The embedded script payload and the XFA form structure indicate an attempt to execute arbitrary code. The embedded URL is likely part of the exploit chain or a command and control channel.

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000384.bin
050d5beeb34da7c8e61c8eb5fb90cf547bac516e803ad0cb8a0bde4c777b4068
pdf-embedded-script PDF raw stream script payload at offset 0x384 12276 bytes