Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dcb4ead5f3cd819…

MALICIOUS

PDF

99.8 KB
MD5: 1eb3145599e1fc7bd046c0aaa063375f SHA-1: 04339558ee4d584a4a3c99e99d0f29efcba630a2 SHA-256: 3dcb4ead5f3cd81973ffa4e37b7c6c4106e8a12af2d94025da062365263b393a
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, leveraging XFA forms and embedded scripts to achieve arbitrary code execution. The embedded script payload indicates an attempt to download and execute a second-stage payload, although the specific URL is not directly extractable from the provided evidence. The attack pattern is consistent with exploiting known vulnerabilities in PDF readers to deliver malicious content.

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
1e3b71f8e50681f7f1f7b36577bbba1263126c4ccbedd7a36d3dc865f280c1f9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101457 bytes

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