Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b1a0e6dcd0471f…

MALICIOUS

PDF

100.0 KB
MD5: fe5b964c5d91c66799847af132e5f86d SHA-1: 27c2cbdda3dc76770c43d3445998a489a9e27695 SHA-256: 98b1a0e6dcd0471f364abdbc453446cf22b373994414958c819a839c5d0e79e9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This indicates an attempt to execute arbitrary code upon opening the document. While no specific script content was provided, the presence of embedded XFA and script payloads strongly suggests a malicious intent to leverage this exploit for further compromise. The embedded URLs are related to XFA specifications and do not appear to be directly malicious.

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 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
  • 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
5ffc2ebd55b4f8e86149ad247be7fee66e953c7f9218a488f90e008823d9c0e3		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101621 bytes

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