Malicious PDF — malware analysis report

Static analysis result for SHA-256 377001e502074b26…

MALICIOUS

PDF

99.8 KB
MD5: 5fdb7a0314a0bd8d66222d09ccc1d019 SHA-1: 2c8175d3715d49f06e4aa05e3f87a9e9b2e4c201 SHA-256: 377001e502074b267fa64c0ad2ece34ad31254dcb72278fcd85ad11a0e4daec8
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image processing. The heuristic firings indicate an embedded script payload within an XFA form, suggesting the document is designed to deliver and execute malicious code upon opening. The embedded file and script payload strongly indicate an exploit attempt.

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
a1f54092f35f476c569ffa5d8c7be6d47e3e14db7fcea96782fbfdb4bf888c92		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101438 bytes

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