Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fe3a025f7c46218…

MALICIOUS

PDF

16.3 KB
MD5: 8ab40dd2e0e9029f21bd8708091b0c0d SHA-1: 13c7530c7a2247492217a7c16bf8ede5e57fe3b9 SHA-256: 8fe3a025f7c46218f535204fe19b28fad3797f9dff024f3a81b32cee6911e233
188 Risk Score

Malware Insights

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

The sample is a PDF file that contains an embedded XFA form, which is known to be vulnerable to exploitation. Specifically, the CVE-2010-0188 heuristic indicates exploitation of a LibTIFF vulnerability within XFA. The embedded script payload, detected by ClamAV as Pdf.Exploit.Agent-6136306-0, likely facilitates the execution of arbitrary code. The embedded URL is not considered malicious.

Heuristics 6

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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_00000359.bin
3427882483902561a24d0ae3c1c26deddd3985d2fe2a2fc29146908374f90570		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15944 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.