Malicious PDF — malware analysis report

Static analysis result for SHA-256 120798c804ec5361…

MALICIOUS

PDF

79.7 KB
MD5: b671bd7810f4b21a871984cc4722ab62 SHA-1: 86ed98a8cbf7835f02931922fefe975e0e301a87 SHA-256: 120798c804ec5361fccc4fc62dbabff42e6f5ec83b26d33b55cdf42c2bcb8719
116 Risk Score

Malware Insights

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

This PDF document is malicious, leveraging the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The exploit is embedded within an XFA form and is designed to execute arbitrary code upon opening. No specific malware family was identified, but the exploit's nature suggests a downloader or dropper.

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
c2fbdbb38b0b67095d4da4b74617ed54bfab88c7a010f7438d0963fd872cc6f2
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80894 bytes