Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f3853c97f82e3ec…

MALICIOUS

PDF

99.9 KB
MD5: 6466978dcdd1ad8d08a0026155aaa583 SHA-1: e387f623f3b59734ea2d9ea11d4125ddfd2327a8 SHA-256: 7f3853c97f82e3ec0185b87e5cd0475aa4c67b2560a795938a2391b58dc737bb
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file identified as malicious, exploiting CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. The XFA form structure and embedded script payload indicate an attempt to execute arbitrary code. While the specific script content is truncated, the exploit's nature suggests it's designed to download and run a secondary malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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 script payload in PDF stream low 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 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
492233641f2067c34f49227701f9673e4e908118c89a28b2f1ed3550bc430f09		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101549 bytes

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