Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3e00cae6c829f85…

MALICIOUS

PDF

99.8 KB
MD5: 43ce528edf0b588acd733e584c7b2b08 SHA-1: a959ca32ec8dbd3b17a958a94bb024500bbf2bdf SHA-256: c3e00cae6c829f8584fbb87b0596eed373d964376b4d3e996bc89650b18935e9
136 Risk Score

Malware Insights

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

This PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The embedded script payload within the XFA form is designed to leverage this exploit. While no specific family is identified, the exploit's nature suggests an attempt to download and execute a secondary payload.

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
ef42d22897583bbcd211635e60e2ec499c8dedfd3cadbf70e3818d02507adec2		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101461 bytes

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