Malicious PDF — malware analysis report

Static analysis result for SHA-256 392ae30b118a43c6…

MALICIOUS

PDF

44.8 KB
MD5: b23fd12c018c27287e2031957731659c SHA-1: ebd992ad23c07bbe7fc9636e653e133c797d0066 SHA-256: 392ae30b118a43c66c93b6f7f41419a0efe35f2dd2ac189c667424e3b8464e2e
104 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript and exploits CVE-2010-2883, a known vulnerability in Adobe Reader related to font parsing. This indicates an attempt to execute arbitrary code upon opening the document. The presence of XFA form elements and JavaScript actions further supports this attack vector. No specific malware family could be confidently 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
7d7630273b6bda26bde47e82e2ce70aaf0077ab6d7965f277309738aa5ba02db		 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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