Malicious PDF — malware analysis report

Static analysis result for SHA-256 476cd53b65ae7b06…

MALICIOUS

PDF

99.4 KB
MD5: ad0b4ac076d82c3ac4f7c22429159824 SHA-1: 3640203a965cb8b4e7cd5753cf1cd0ed4cedd4df SHA-256: 476cd53b65ae7b0629c892cf387971547437a604e342ef3e8646b5e8fbc3643a
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA forms. The presence of embedded script payloads within XFA forms indicates an attempt to execute malicious code. While the specific script content is truncated, the exploit pattern suggests the primary goal is to download and execute a secondary payload. The embedded URLs, though mostly benign or unknown, are part of the XFA structure.

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 executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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
c48dc11815de90e84d22912cc3b9cb88d3aebbacb69452225cb0201be1f63c2a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101071 bytes

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