Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c7febb69ab0823…

MALICIOUS

PDF

81.8 KB
MD5: d4b74c3c8a2f9f9fe3f9ba819d198d50 SHA-1: 04bc2f0d8f5c26b0954e7e54c5b6c0a9b2cbdba7 SHA-256: d6c7febb69ab082315deab3a21d47c57827c389d7d67399a813785dc978ad8db
158 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit allows for arbitrary code execution. The PDF contains embedded content and references to XFA schemas, indicating a deliberate attempt to leverage this specific vulnerability for malicious purposes. The ClamAV detection further confirms its malicious nature as Pdf.Exploit.Dropped-93.

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.
  • ClamAV: Pdf.Exploit.Dropped-93 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-93
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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_file_obj0008.bin
e3fa3ecab5bd245a1d62f90c8deb17fb9394456c9e482617bad5440dc323c8e3		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 83310 bytes

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