Malicious PDF — malware analysis report

Static analysis result for SHA-256 4558a956c4f76705…

MALICIOUS

PDF

99.6 KB
MD5: eb8dad0b0d9243decd89647876830df9 SHA-1: cbc1196d6a6d627ac5da52a60f56e1786dc4009d SHA-256: 4558a956c4f76705d4757f93f093727b8e505a789845aafa63cc05af6a370c58
138 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's LibTIFF component. The critical heuristic firing confirms the exploit payload was decoded from an XFA form. The PDF also contains an embedded script payload, indicating it's designed to download and execute further malicious content. The embedded file artifact further supports the malicious intent.

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
d522cdd4d0c62a1b0292c173af2b0666bfebb52a51fe38d737f77c3fe603595a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101253 bytes

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