Malicious PDF — malware analysis report

Static analysis result for SHA-256 6609f210d9e437ef…

MALICIOUS

PDF

82.1 KB
MD5: 43ee16bd58215a47f11d65b82d119c50 SHA-1: 3a5d0afe5ca496789e2bac79b5a93f9d69a73142 SHA-256: 6609f210d9e437ef3c9d270672d0000ae99ecb5ccb599fba9534ee4b40e4c7c6
176 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an exploit targeting Adobe Reader's LibTIFF component. The presence of an embedded file and script payload further supports its malicious nature. The exploit likely facilitates the execution of a secondary payload, as indicated by the ClamAV detection name 'Pdf.Exploit.Dropped-93'. No specific malware family could be confidently identified.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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 script payload in PDF stream low 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 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
1fc44ee3dd094f226e27a77946d38226c05e290e2c924b6726e18df7a01f1b75		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 83496 bytes

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