Malicious PDF — malware analysis report

Static analysis result for SHA-256 4397413de318ab99…

MALICIOUS

PDF

99.9 KB
MD5: ca2af8b086bb7b3b311a515624126099 SHA-1: 24e60950188016fc3c0e87649f7ef90e78386d55 SHA-256: 4397413de318ab999f9da764c07f8bb2d3a2eed9f8ef0879ca656786fb4d7cca
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit delivery. The embedded script is likely responsible for executing the exploit payload, leading to arbitrary code execution on the victim'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
839e17567ad8a46e6c977e1eda7a95dfc04aa532901474c02efc618e03a5f340		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101509 bytes

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