Malicious PDF — malware analysis report

Static analysis result for SHA-256 e933f20e8e16e6dd…

MALICIOUS

PDF

79.9 KB
MD5: 45e8c579aa182ef6775fbf73e8669113 SHA-1: ea4e952f145b9755060cd73eb6d3ac96b9b6f6a5 SHA-256: e933f20e8e16e6ddd1540057124c223e7a5c74a9d16774fddf108dd67fc8797c
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening in a vulnerable Adobe Reader version. The embedded script payload, detected by ClamAV as Pdf.Exploit.Agent-6136306-0, further confirms its malicious nature. The primary attack vector is the exploitation of a known vulnerability for client-side execution.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000288.bin
bb4d39f533245672e9add7d53fb0e8ab7a3269134b68a9f78d49b939caaa0b42		 pdf-embedded-script PDF raw stream script payload at offset 0x288 81046 bytes

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