Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8e3d57b195881c6…

MALICIOUS

PDF

12.8 KB
MD5: 4e5b18107d30c8f78e39437404ac4e0a SHA-1: 5a4d761c8416456a847f260500fa63a2ae87a384 SHA-256: a8e3d57b195881c6845a4b4e62ca2c95570c5451468b994b5db6c76b066eade9
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF file contains an XFA form that exploits CVE-2010-0188 in Adobe Reader, allowing for arbitrary code execution. An embedded script within the XFA form is likely responsible for delivering the malicious payload. The embedded URL is likely part of the exploit chain or a secondary download location.

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_0000034c.bin
d26dc8a240b0fa2e874f256fcd7191a31c9340b5cf507d930ec37132f02a89d9
pdf-embedded-script PDF raw stream script payload at offset 0x34C 12363 bytes