Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dceb1444c8a49ca…

MALICIOUS

PDF

99.7 KB
MD5: 3a87e37cff282fb4ab44bae243510c24 SHA-1: fc85a7d0db50972bb8f454b20b6d06c274691ff8 SHA-256: 0dceb1444c8a49ca99bb94074908132ac2c60e7e2d7ad15be1933e7b705eede3
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and contains a critical heuristic for CVE-2010-0188, an Adobe Reader exploit targeting XFA forms. This exploit likely facilitates the execution of arbitrary code, potentially to download and run a secondary payload. No document body text or scripts were extracted, but the presence of the exploit and embedded file strongly indicates a malicious intent.

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
405195a7fe5b52ae0192786a5547c84073a80451a303dbc557f85293b31ae319
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101374 bytes