Malicious PDF — malware analysis report

Static analysis result for SHA-256 db9ac6f2fd6e1346…

MALICIOUS

PDF

12.6 KB
MD5: 58e4db3088bd8e48983c3518a234e936 SHA-1: 694881c31470ec18e20d0fc5e94dabdd9f9a3a8a SHA-256: db9ac6f2fd6e1346203774e17bef1c086d38f0b09034233b42cf7fd736e3089b
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 embedded script and triggers critical heuristics for CVE-2010-0188, an XFA form exploit in Adobe Reader. This indicates the file is designed to leverage this vulnerability to execute code. The embedded script, although not fully detailed, is likely responsible for downloading and executing a secondary payload, as is common with this type of exploit. The presence of an embedded URL further supports the delivery mechanism.

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
113dbc632aac92208f2b0c1a47e68e121636120e20815f4b35a340281769f61a		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes

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