Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e66882baef978a…

MALICIOUS

PDF

78.0 KB
MD5: f6dde5439bf431abcc7bd9a05d909b6c SHA-1: 6dea8fb540fcf1d14f1f5ad197404928691b4003 SHA-256: 00e66882baef978ac8e29f3cc95cfc5800e0d3c17e77a221cf815aabd62f28e2
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution T1059.001 PowerShell

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The critical heuristic firing indicates it's an XFA form exploit, designed to download and execute a secondary payload. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as Pdf.Exploit.Dropped-78.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
d517051d022c5c879b3baf145f1452760dab1ad17066838ff4f623c2ee9ad086		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79096 bytes

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