Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17ee64c2aeea5dc…

MALICIOUS

PDF

44.7 KB
MD5: d8b9535aa20db46b324a9887bc6f6ff9 SHA-1: 61aceaebf51c3b3fc7c650d953f6ca4f763d449b SHA-256: e17ee64c2aeea5dcc835a3d70213b435abdd4be0525f4b128f63e98c926af87a
104 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and utilizes an ASCIIHexDecode filter, indicating malicious intent. A critical heuristic firing confirms the presence of the CVE-2010-2883 exploit targeting Adobe Reader's CoolType SING font parsing. This exploit allows for arbitrary code execution within the context of the vulnerable application. No document body text was available for analysis, but the presence of the exploit and JavaScript strongly suggests an attempt to compromise the user's system.

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
0d115a30a12d2ddb6c2dcc0cce4072ba278e23f6a16c9f0c4021a60bb7149ee3		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3700 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

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