Malicious PDF — malware analysis report

Static analysis result for SHA-256 710340d9f3429c15…

MALICIOUS

PDF

99.9 KB
MD5: ba86a1422b790b7dec506476e7ffbcce SHA-1: ccc286ffa60f2e7e7dc8d9ed655f772dfe8abfb9 SHA-256: 710340d9f3429c157f1ef7d04dc3d93bd10c33600ba4cb95cadf51581d6b64f4
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is designed to execute arbitrary code. The ML classifier strongly indicates malicious intent. The embedded file and XFA form suggest a crafted exploit document, likely delivered via spearphishing.

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
c6a81e2ac5aa10cd8e43ceb65a56dcf4a2b92daf5308ad1ebdf6057aa5ff9fba
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101595 bytes