Malicious PDF — malware analysis report

Static analysis result for SHA-256 f711dba3530a96ad…

MALICIOUS

PDF

4.3 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob
MD5: 1264fd2db4973fa8354be60418f2dbae SHA-1: d455af7a50aad101bab75c2346f5997968852f8f SHA-256: f711dba3530a96addbd802abe8e9d5b03f5890ec64c2da396b58436ba3f1f9bf
166 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution

This PDF file is malicious, exploiting CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA images. The heuristic firings indicate the presence of an embedded exploit payload within an XFA form. The ML classifier strongly supports the malicious verdict. The exploit likely facilitates the download and execution of a secondary payload, although no specific details of the second stage were extracted.

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.
  • 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 script payload in PDF stream medium 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 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
e8479c7d9748339d3a790025e0da9465486cb92b2d64a9e0e548a351eba5d612
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x167 13007 bytes