Malicious PDF — malware analysis report

Static analysis result for SHA-256 510b52cd9b83fc2f…

MALICIOUS

PDF

45.0 KB
MD5: 446249ce70b0e8fdc3f607243c84d7a0 SHA-1: 8a5d4fded6b21a36bd54016c762ad0cf76f4b814 SHA-256: 510b52cd9b83fc2f1104f5aac942615f6939efd94cfa58ecc2cc212bdf4e6e83
104 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2010-2883) related to Adobe Reader's font handling. The presence of JavaScript and the exploit indicate an attempt to compromise the user's system. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, though its exact function cannot be determined due to obfuscation. The document body is truncated and uninformative.

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
18473adf23e687ce6fd6814b5812de2d9ba82f2e602183ef31aef434f32c58a5
pdf-javascript-stream PDF /JS object 12 at offset 0xA0BA 4000 bytes
font_00_sfnt_off0000033c.bin
683fcffe9abaad29001e134bdd9ad7d1628d5cbbf628c451b6c621f202a7dae4
pdf-font-stream PDF embedded font (sfnt) at offset 0x33C 65932 bytes