Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f0b04ca27d52549…

MALICIOUS

PDF

4.0 KB
MD5: 2abec10a15bfce9e05ef4a8c943396b8 SHA-1: ebd023e86b6d69d3bd5078f6792f42ebbcdf9d32 SHA-256: 6f0b04ca27d52549a1bb4991f6030dd0cd1d84990c141ad920438798911417e7
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to allow for arbitrary code execution. The ML classifier also strongly indicates maliciousness. No specific malware 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/L2C7sq
    • 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
60d868a961a82cfee7ce1e20a80d31747db5f67b15a6cdb2a081e8cd10475f6f
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12464 bytes