Malicious PDF — malware analysis report

Static analysis result for SHA-256 e45f2b927b58b53d…

MALICIOUS

PDF

12.6 KB
MD5: d0d7135ccbfac1403cf3d4892e911c18 SHA-1: ea5dc81e2b548e64acfa885266c119320a7add12 SHA-256: e45f2b927b58b53dc6435444fecf24ce8bd5d2cabd0b6796081a1b01fa30ebd1
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The file is a PDF document that leverages the CVE-2010-0188 vulnerability in Adobe Reader's XFA form processing. Heuristics indicate an embedded script payload within an XFA form, which is designed to execute malicious code. The embedded script likely attempts to download and execute a second-stage payload, as suggested by the PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA_SCRIPT firings.

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
340cfe0cf0ed6d6cfa243a18c4a5f02f65be1f34c7a06d774547ada54e17607c		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes

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