Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99227eeca22ae34…

MALICIOUS

PDF

44.8 KB
MD5: 0a8c65c9e954fc9b42b184346c6ffac2 SHA-1: 3c7a36ebb5b3b13c708e8476c0dbfd120a6dbd27 SHA-256: e99227eeca22ae34c4ed139c41d06023e50339191d93f8f6cbd2a9deb65046bd
104 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical heuristic for the CVE-2010-2883 Adobe Reader CoolType SING font exploit. The presence of JavaScript and the exploit indicate the file is designed to compromise the user's system upon opening. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

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
a615ed2d4cf853a805b4d2e3db99ab43bcf1ae581bce99cfb25ecbbd1b5c5f74		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3778 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

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