Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a11839c02157fc3…

MALICIOUS

PDF

90.2 KB
MD5: bf42251cbc26cc0a1cf527ca6a91b7b7 SHA-1: 9e1fd66969c70d82bc848eb2015ebb9b449e43f7 SHA-256: 7a11839c02157fc38c5263fcdcf7c1cd78f062d92239f9d49885644e78839c86
116 Risk Score

Malware Insights

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

The PDF sample contains embedded content and triggers the CVE-2010-0188 exploit, which is known to facilitate arbitrary code execution. The presence of XFA forms and embedded script payloads further indicates malicious intent, likely to download and execute a secondary payload. No specific family could be identified.

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
58d4b69d95f73fe02613e0f881d80df404fd870af89abe1774679920006d8582
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 91607 bytes