Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cdf4b95cd5ca89f…

MALICIOUS

PDF

99.7 KB
MD5: ab613ec85ce0be81e322cfd12be71f8e SHA-1: a03c89b5b42d7b7e109ab04a61f51e9c05d50e1c SHA-256: 6cdf4b95cd5ca89f2f8c41ff563cd4ce165da15c9b70d9835172a0547b34dba9
116 Risk Score

Malware Insights

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

The PDF file contains embedded content and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader's XFA forms. This exploit is designed to achieve arbitrary code execution, typically to download and run a second-stage malicious payload. The ML classifier strongly indicates 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
3d00eb5e05d765fe1a8a8f693ec408a40c29ca49c9bc9248c31770f17515efc8
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101317 bytes