Malicious PDF — malware analysis report

Static analysis result for SHA-256 4134e97020df7d4d…

MALICIOUS

PDF

12.9 KB
MD5: 1e0e8baf09bef0b8c92c4b156322e016 SHA-1: 48641353d28263a7293cdf2e0cfce7e60d69f298 SHA-256: 4134e97020df7d4d4bcc037e73f7cc59d232b5ddce09ba2c7c91689c6b0844b1
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form that leverages the CVE-2010-0188 exploit in Adobe Reader. This exploit is designed to execute arbitrary code when the document is opened. The embedded script payload further supports the malicious nature of the file, likely acting as a downloader or initial execution vector for a secondary payload.

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
83a9d81b931ea13142e103038d748aa36bd9c74dfa76bf26686ae081cc10ef3e
pdf-embedded-script PDF raw stream script payload at offset 0x359 12469 bytes