Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2896bc4e087a45…

MALICIOUS

PDF

63.3 KB
MD5: 3f1397c9ea617f6c1bbb25ec2ba28aaa SHA-1: 6ea6b06be3dbe82ef6829e7c45bf0a762e434b6b SHA-256: 7b2896bc4e087a457f056fee3e729cac7ab91247e5d3e0fc67170ed583ae2303
156 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) content which is known to be a vector for exploiting vulnerabilities in Adobe Reader. Specifically, the CVE-2010-0188 heuristic indicates exploitation of a LibTIFF vulnerability within XFA forms. The embedded script payload and XFA script firings suggest that the exploit is designed to download and execute a secondary payload. No specific malware family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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
5139e6ebb1480ba387618c03348e6c15524d9c78cbfe64f4c5c982fbdf53c876
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 64111 bytes