Malicious PDF — malware analysis report

Static analysis result for SHA-256 817ec2a8a4b6ee55…

MALICIOUS

PDF

44.7 KB
MD5: 6b0670caf53bace4272d87cd3b0c2e60 SHA-1: 1e7ea39a0e08b08bdee6980abf821dc6f436c7aa SHA-256: 817ec2a8a4b6ee55b57faa39f43679d642d4c44063bc371ed7c728166701ae4e
104 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution

The PDF file contains embedded JavaScript and utilizes an ASCIIHexDecode filter, indicating malicious intent. Crucially, it triggers the CVE-2010-2883 exploit for Adobe Reader, which is known to allow arbitrary code execution. The presence of XFA form elements and JavaScript actions further supports the exploitation vector. The primary attack pattern involves luring the user to open a malicious PDF that leverages this known vulnerability.

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
a28dbd0eead5e9d9a64cd6c36bc3f81f245d43cf5fd58c4e17dc928ee208fe3b		 pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 3718 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.