Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f990b28fb8d985…

MALICIOUS

PDF

99.6 KB
MD5: 1cdd10fdf7f50df40ea5a9c958d2d4d4 SHA-1: 998ed3255796f298fcabd6efee71fc320974b815 SHA-256: b7f990b28fb8d985e2b2b9b89e77a5046ad5e5586851cb430b32b8238f18b57c
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF T1059.007 Command and Scripting Interpreter: JavaScript

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The critical heuristic firing indicates that the XFA payload was decoded from a raw stream, suggesting the execution of arbitrary code. The presence of embedded script payloads further supports the malicious intent. The document body is truncated and does not provide further context on the specific lure.

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
dd708985ba98da3af10aa7f4a3b6ff2dab860e08cd33c1e34891725b75a33857		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101198 bytes

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