Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1c17062ae9120a…

MALICIOUS

PDF

44.7 KB
MD5: ef0b3ae2159597390f552de1335f395a SHA-1: 5e6952802ecd211fa94c11bb7aef539b41e6da05 SHA-256: 7b1c17062ae9120a09ba92fcd039ed2b088af14aff0430f64aff7c8fd3b940d7
106 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript and exploits the CVE-2010-2883 vulnerability in Adobe Reader's CoolType SING font parsing. The presence of JavaScript and the critical exploit firing strongly suggest that the file is designed to execute arbitrary code upon opening. The embedded JavaScript, though not fully detailed here, is a common mechanism for downloading and executing further malicious content. The document body is largely unreadable, providing no direct clues about the lure.

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
6f4c064d2267829bb00fa399aaa518848ddfc4ab75e361f38bf0ae2dbfdb3131		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3688 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

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