Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a1737e6af6ff470…

MALICIOUS

PDF

99.9 KB
MD5: a07c9f66d6cb60426d2f075c459b2ee1 SHA-1: 42bffe15782c25d4aea3fe41cf0499aac3f57766 SHA-256: 8a1737e6af6ff470f00d73864376c459e7c29565e51d23b7dab9fc85088a8ffd
136 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, which is known to exploit Adobe Reader through XFA forms. The PDF contains embedded script payloads within its XFA structure, indicating an attempt to execute malicious code. While no specific family is identified, the exploit and embedded script point to a malicious document designed to compromise the user's system.

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
b1c7a7a49adcd020351c23f35a3f9e82eb3f85b5cbc1c15df03a01deb4e0330c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101577 bytes

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