Malicious PDF — malware analysis report

Static analysis result for SHA-256 53d89f9b72e35983…

MALICIOUS

PDF

100.1 KB
MD5: 6476adec9b9c95b5f7b177c180bbcb0c SHA-1: 2f6aa70459cc943c3fdc279908adef515f132149 SHA-256: 53d89f9b72e3598352343b5db401ebca3bd9f6e035b0993d3daa966d729f6ba8
136 Risk Score

Malware Insights

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

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. The PDF contains an embedded script payload within an XFA form, indicating an attempt to execute malicious code upon opening. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured. The presence of XFA forms and the specific CVE exploit 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
6f12b815a3024fa204407c9a9881c0a250c79898e61e4fbb06d9d79e4cf10bd5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101712 bytes

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