Malicious PDF — malware analysis report

Static analysis result for SHA-256 6811c8e042c74398…

MALICIOUS

PDF

99.5 KB
MD5: 1586c6d4122c3ef8f768db9718471d2a SHA-1: dda5cb1874528cb8a6b99cd884c490a2be9b3955 SHA-256: 6811c8e042c74398f1d53f8cb831348c2624e3aa387c997e6effe3deae42ec2d
116 Risk Score

Malware Insights

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

The PDF file contains an embedded exploit targeting CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious payloads. 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
90de1de0437ce1c380f76b18b73b360fe2681d27ee7f429a72da200b5616929a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101181 bytes