Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2a065974b85f74…

MALICIOUS

PDF

100.0 KB
MD5: b07c3852a84bcbaabe2bddb8bf747ff7 SHA-1: 0896b4239d60f25474ca48a7ddd4e1878fc2651f SHA-256: 5d2a065974b85f74451e309bedc7c4965d820026cf35a539e9b2fb7c23326ca4
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF and XFA forms. This exploit is designed to execute arbitrary code upon opening the document, likely delivered via spearphishing. No specific malware family could be identified, but the exploit's nature points to a malicious payload execution.

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
952533ca8c69ca5c1f454c53529d3d804ccf040810bb240eb3825ecbc632f7e2
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101696 bytes