Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c13bc091dbd4c5…

MALICIOUS

PDF

99.7 KB
MD5: 15f2b9b3bff12d9f555de481aedda37e SHA-1: 100031bf2622e65b803422299051653fced4b74b SHA-256: 12c13bc091dbd4c5e9fb018caba8d0186d4b5eddb9a5ee76908e25459a413cdf
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component, to achieve code execution. The presence of XFA forms and embedded scripts further indicates malicious intent. The primary attack vector is likely spearphishing, with the PDF acting as an attachment designed to exploit the reader's vulnerability.

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
54f378354ec59a56f5a93f9362632407d99420b415cf472985bcd47333e9c932		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101310 bytes

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