Malicious PDF — malware analysis report

Static analysis result for SHA-256 86d7dd775129704a…

MALICIOUS

PDF

99.4 KB
MD5: 7aad81a5c46ed88e5fc2700edcbbe8e8 SHA-1: 519daaf99a56cf262f9233681d7a5282a5a28052 SHA-256: 86d7dd775129704a7568e379858b271d8d1e3707d2023f7bb1406a7be0f47a91
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. This indicates the file is designed to execute arbitrary code upon opening. The embedded script and exploit suggest the primary goal is to download and run a secondary malicious payload, though no specific family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
8fd2419f5c0a3e14ca1e88377d6a18d23599242e892f281df2970a865ec4f537		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101051 bytes

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