Pdf.Dropper.Agent-1559333 — PDF malware analysis

Static analysis result for SHA-256 69dd4a5f606ccbe2…

MALICIOUS

PDF

1.79 MB
MD5: 3f41dc8e22deca8302db1207e5cdc11c SHA-1: 5383e7d50e181429d79138b9d4dc879cb951c74b SHA-256: 69dd4a5f606ccbe2a69acd6d7eec98b17d4d8bc4545b08511454b784ef6885a3
206 Risk Score

Malware Insights

Pdf.Dropper.Agent-1559333 · confidence 95%

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript T1566.001 Spearphishing Attachment

The file is a PDF that leverages the CVE-2010-2883 vulnerability, targeting Adobe Reader. It contains embedded JavaScript that is obfuscated but appears to be designed to download and execute a secondary payload. The ClamAV detection name 'Pdf.Dropper.Agent-1559333' further supports its role as a dropper.

Machine Learning

  • Nyx PDF Classifier clean score 0.1573

Heuristics 7

  • 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.
  • PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER
    PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
  • ClamAV: Pdf.Dropper.Agent-1559333 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-1559333
  • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
c4ba3591c3074e8fbc2f51681f2267ae4d6650196a96437268cf3aa864f515e3		 pdf-javascript-stream PDF /JS object 12 at offset 0x1CA16F 5835 bytes

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