Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8b0ee82c092dd3d…

MALICIOUS

PDF

99.8 KB
MD5: 9d65f0dce9ed4c311691656f8c2d718d SHA-1: ea62f66a7320b0a151a5c9678a9d666109257912 SHA-256: d8b0ee82c092dd3d64a92036095095f25660b7ff79d4055df9c6718946b6c37f
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The embedded XFA form contains executable script which is likely responsible for triggering the exploit. The script's obfuscated nature prevents a full analysis of its payload, but the exploit itself is sufficient to indicate malicious intent. No specific malware family could be identified.

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.
  • 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
d6b1d095abe3ed9b0b0267b31e35a7b7e1d5d32f265c61f7435ad8e7e46dab12		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101433 bytes

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