Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8b4e346357ddc04…

MALICIOUS

PDF

90.5 KB
MD5: 604a2296e97273ad1f8d80518207b331 SHA-1: 225ec786ac6913007a00e9d8856d97252dc9946a SHA-256: b8b4e346357ddc04e7b3d325b7fb5fea13c31dedf42914c3525c479685ec5b81
188 Risk Score

Malware Insights

MITRE ATT&CK
T1190 Exploit Public-Facing Application

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, indicating it's designed to compromise systems running vulnerable versions of Adobe Reader. The embedded script payload and ClamAV detection further confirm its malicious nature. The exploit likely leads to the execution of a second-stage payload, although the specific details of the payload are not available from the static analysis.

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_0000023e.bin
a34d962249bab36abaf89fd947785e36e4efba6077f63d78c2aa7a36e43d4c5e		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 91987 bytes

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