Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e62a971676510f…

MALICIOUS

PDF

99.7 KB
MD5: e2823fa85c13f334d714d1b5c458f7ec SHA-1: 0febd8f9c9c83118c125bf4a087a335d07d87e0e SHA-256: 02e62a971676510f92cfda800bf7f8ffa1167c96f4c395ca0ee6b4735bfbc222
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 handling of XFA forms. This exploit allows for the execution of arbitrary code, likely to download and run a second-stage payload. The presence of embedded files and scripts further supports this malicious intent. The benign URLs found are likely part of the XFA form structure and not directly related to malicious C2 communication.

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
2be4a7026fdd7c470c861c00f2399ccbe1a7b31ac6a8bed8d39978fb88d09cc2		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101364 bytes

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