Malicious PDF — malware analysis report

Static analysis result for SHA-256 70ad6e3c5cde024a…

MALICIOUS

PDF

99.4 KB
MD5: 5262af77e57905e15d0667266aa59440 SHA-1: bfc24a6c0f16847d5d33aa9f8c3965b3f447132e SHA-256: 70ad6e3c5cde024ad6df06870dedcddc53b6a2295cbd7a6c0bceeb8591485545
116 Risk Score

Malware Insights

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

The PDF sample contains embedded content and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a vulnerability in Adobe Reader's LibTIFF component. The ML classifier strongly flags this PDF as malicious. The embedded script payload suggests the exploit is used to download and execute a secondary stage.

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
f1c790b0eb5b5f6a183a00d69376d941a6cfed3a9ed904becffedfdaa875faeb
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 100998 bytes