Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17b2ca735ff0c0c…

MALICIOUS

PDF

89.7 KB
MD5: db35a3baff976bb9ab1f262e04e6a844 SHA-1: a100b2b193a2a9767a54b25dc0a800c12eab5558 SHA-256: e17b2ca735ff0c0c189475a7fccb49f675ebd4b666603e8006e06a807d6ce7d2
188 Risk Score

Malware Insights

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

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's XFA form processing. The embedded script payload, located at offset 0x23C, is likely responsible for executing the exploit. The presence of XFA forms and the specific CVE firing strongly indicate a client-side exploit targeting Adobe Reader. No specific family could be identified, but the exploit mechanism is clear.

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_0000023c.bin
e4b1a28daa659a19cdba3d23737e1f12856c260bf494dd9efe34587590a2f8c5		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 91134 bytes

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