Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9817c477ba7bce7…

MALICIOUS

PDF

65.6 KB
MD5: 9bd76555bba578ce32b6353d306030ef SHA-1: fec003be0ee3a767e758a1dcdfff493afb792e9f SHA-256: b9817c477ba7bce7e253d1a36a80a6ff237aa10f27d902199f216df4814409a1
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell T1204 User Execution

The PDF file contains an embedded script within an XFA form, triggering the CVE-2010-0188 exploit. This exploit is known to be used for arbitrary code execution, typically to download and run further malicious content. The embedded script is the primary indicator of malicious intent, and the exploit targets a known vulnerability in Adobe Reader. No specific family could be identified.

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
c5aefa0f84ae3759d2bcbd8efae952493331ef5ffc92913ed06524ed4f0c573d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 66467 bytes

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