PDF malware analysis — malicious · 0883527f377fc300

MALICIOUS

PDF

9.7 KB Created: 2010-04-29 20:38:37 Authoring application: DD9FV2m0 (via awtwD)

MD5: 55019365800a27c37619993089fd49a6 SHA-1: e037627dd1edfc6b828c75c0680435792b7a9fc0 SHA-256: 0883527f377fc300edb77d01eb90722f7d9de97a8b1240c87907617e978457bf

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript that is heavily obfuscated but appears to be designed to download and execute a secondary payload. Critical heuristics like PDF_JS_EXPLOIT_CLUSTER and ML_NYX_PDF_MALICIOUS, along with ClamAV detection as Pdf.Dropper.Agent-7225876-0, strongly indicate malicious intent. The JavaScript's obfuscation and the presence of exploit cluster signals suggest it's attempting to exploit vulnerabilities or deliver further malware.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

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-7225876-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7225876-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `48ed307e5d8cdd1f9e45ed9cac91daf720e7d2c262ed6a2fee5d5eee13733fdb`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23C	8136 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.