Malicious PDF — malware analysis report

Static analysis result for SHA-256 d601a719a46705ea…

MALICIOUS

PDF

44.7 KB
MD5: f34b7685f4648c99c140adb0f0f1a0d0 SHA-1: 36183fcdef13a64e5984dc588ed6d62652dcf8d9 SHA-256: d601a719a46705ea7b8c4a6c048e28fdbf17c34d70367837d1110dd73693596c
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 an attempt to obfuscate malicious content. The critical heuristic firing for CVE-2010-2883 confirms the exploitation of a known Adobe Reader vulnerability for client-side code execution. No specific malware family could be identified.

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
3291bc7dbe0b44034d6dd19170467dbf97bde54c0754c71d4286a01ea899da32		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3712 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes

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