Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ab61ccf5c7d8104…

MALICIOUS

PDF

44.8 KB
MD5: c3d96f249f4c30bad43ce1d63c7d5852 SHA-1: 64dfafe4ecc6ea54ce35283285922babb2bf5134 SHA-256: 4ab61ccf5c7d81041b88b10d0d8c3434d8e6de54640d46c1472d9b0426f6562c
104 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2010-2883, an Adobe Reader CoolType SING font exploit. The presence of JavaScript and the exploit indicate the file is designed to achieve arbitrary code execution. The exploit likely serves as a dropper for further malicious activity, though the specific payload could not be determined from the provided evidence.

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
cdda2dc9afbddaaf6cae32cc2d68c95f247fb89ca5e7cfb044d249ebc7f5db6b		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3802 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

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