Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea0317c8b6921a3…

MALICIOUS

PDF

102.2 KB
MD5: 1573a28489deecf3ab8d87ec11546657 SHA-1: 5fe1f35d68ed28b48095bf0e1ca29a869dd24c72 SHA-256: 8ea0317c8b6921a3317f42e562baabe199894c35729ab58e0383ff96ccc97e50
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains an XFA form and triggers critical heuristics for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component. An embedded script payload was also detected within a PDF stream. The embedded URL, while not directly malicious, is associated with XFA templates, further supporting the exploit vector. The combination of these factors strongly suggests the file is designed to exploit this vulnerability upon opening in a vulnerable reader.

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_00000346.bin
5912bfa8a03680566d6947b7ad2fdef395694c8b4eb6ccca899eb5e3ef1f61f6
pdf-embedded-script PDF raw stream script payload at offset 0x346 103929 bytes