Malicious PDF — malware analysis report

Static analysis result for SHA-256 efbea356fd2df3a6…

MALICIOUS

PDF

44.7 KB
MD5: 8e0bf535e4c0f0240b0a3b5643ff8aa8 SHA-1: 67c6b127a31fd5cbe09bcb7556e6238b306020fb SHA-256: efbea356fd2df3a65f272d39bdeabb719af9b63e66092486fd04603e64ca16ee
104 Risk Score

Malware Insights

The PDF file contains embedded JavaScript and triggers the CVE-2010-2883 exploit related to Adobe Reader's SING font parsing. The embedded JavaScript is likely used to download and execute a second-stage payload. The presence of XFA forms and ASCIIHexDecode filters further indicates a malicious PDF designed to exploit vulnerabilities.

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
ebcf86aedf1532e3b38cacc21a2f36a25408fcedd59cf6725794f8f928306953		 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

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