Malicious PDF — malware analysis report

Static analysis result for SHA-256 240cb1c0c52dc267…

MALICIOUS

PDF

44.9 KB
MD5: 3ddee54935cd48bcba946e231af12221 SHA-1: 1d17fafc3fcfa3d3d1a561ae73122ed193fa4c9a SHA-256: 240cb1c0c52dc267f8d86140b4f6255bcad131aee5ace1ff338f4cebd41222b9
104 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that leverages the CVE-2010-2883 vulnerability, targeting Adobe Reader. This exploit is designed to achieve arbitrary code execution. Embedded JavaScript and the use of ASCIIHexDecode filters further indicate malicious intent, likely for downloading and executing a second-stage payload. The presence of XFA form elements and embedded JavaScript streams are common delivery mechanisms for such exploits.

Heuristics 6

  • Adobe Reader CoolType SING font exploit — CVE-2010-2883 critical CVE likely CVE_2010_2883
    PDF embeds a TrueType/OpenType font with an actual SING table and pairs it with JavaScript heap-spray shellcode. This matches the public Adobe Reader CoolType SING exploit shape for CVE-2010-2883.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
24755cebc3bf118689eed25a90bd2251d40a6affdd439457db839f912d03f1c6		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3916 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.