Malicious PDF — malware analysis report

Static analysis result for SHA-256 33e6dffb275067e4…

MALICIOUS

PDF

99.8 KB
MD5: 5ee6b31632e10e31042471259a844204 SHA-1: 48bbd598fa8274617c02ae553b441e8fe79d4a4b SHA-256: 33e6dffb275067e4d4c8b1d292357b073991640f9b454c9f54de6fb92f411201
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, which is a critical finding. This vulnerability allows for the execution of arbitrary code, likely to download and run a second-stage payload. The presence of XFA forms and embedded scripts further supports the exploitation vector.

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
1389e7dd692db116082d38873ef13ace83e900c04e3dcf70ab95d9ffb1f3eca9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101455 bytes

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