Malicious PDF — malware analysis report

Static analysis result for SHA-256 47dfed89de7c7790…

MALICIOUS

PDF

12.6 KB
MD5: cec293043a6027c6f3e08984161bac0a SHA-1: fba66c5e7e1f9875569020a167c864a0ca9d20b9 SHA-256: 47dfed89de7c779085273c1b04828c0c2ba576bb3d0c39fe08719b3a1ecaf5b4
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The file is a PDF document that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader. The embedded script payload, detected by multiple heuristics, is indicative of a downloader or exploit delivery mechanism. The embedded URL is likely part of the exploit chain or payload delivery.

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
0ef7d2de82f11c7620ed6fed98a39d67220d0b21c311f7a91953f5f4aa620f73		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes

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