Malicious PDF — malware analysis report

Static analysis result for SHA-256 d49375373de2e2a4…

MALICIOUS

PDF

99.6 KB
MD5: 09924022fb4c07c37ae8e06f2e7cfb53 SHA-1: 5293439d4dc4fdab0d310b02db67bb8b2f3342d7 SHA-256: d49375373de2e2a4f740a68daa222c69a34e726439cb4258771ea2c3c409e3b5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF

The sample is a PDF file that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image parsing. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit documents designed to deliver a secondary payload. No document body text was available for analysis, but the exploit and embedded script strongly suggest a malicious intent 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
7ae28c3ef296eb238b3413dfafc57a37c39d9f7bf0e5a2ad7cb9e039e94e79fa		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101224 bytes

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