Malicious PDF — malware analysis report

Static analysis result for SHA-256 568875fc9d17cf85…

MALICIOUS

PDF

44.7 KB
MD5: ca0ea1aee6ef1dfec59835d0793a0a50 SHA-1: 42d6295478c782c9fbe46bfbb53f72250f58b6d6 SHA-256: 568875fc9d17cf856ed33216be0f2b8cb3f1957e58fffb3ed25a2738c656f7df
104 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-2883, a known vulnerability in Adobe Reader related to font parsing. The presence of embedded JavaScript and XFA form elements further indicates malicious intent, likely to achieve arbitrary code execution. The embedded JavaScript stream, though not fully analyzed due to its size, is a common vector for delivering second-stage payloads.

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
e89c38f71b9d13770a4eaa2500a2719364288ff751089ddbd3441a80d738a91b		 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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