Pdf.Dropper.Agent-1828806 PDF malware analysis — malicious · 715b0706078f926a

MALICIOUS

PDF

10.4 KB Created: 2009-10-06 15:12:43 Authoring application: rGfWdrFjGpfzNwuLKx (via JwVfbvxKdYSNwXJkz)

MD5: bf602132a37632a903585eeadbb92a00 SHA-1: 7d4cc442b389a1ecacbbb70f96ff691abab08035 SHA-256: 715b0706078f926a273562ead82baad9925db81c353570234b1e9d93749dcbd6

216 Risk Score

Malware Insights

Pdf.Dropper.Agent-1828806 · confidence 95%

MITRE ATT&CK

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

The PDF contains embedded JavaScript that utilizes eval() and String.fromCharCode() to deobfuscate and execute code. This script is designed to download and execute a second-stage payload, as indicated by the 'Pdf.Dropper.Agent-1828806' ClamAV detection and the ML classifier flagging it as malicious. The presence of JavaScript exploits and the dropper behavior strongly suggest a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 7

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-1828806 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1828806
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `fcf13ccf5b65fc73d8ce3129da41093adfb484189bf39b83e1a9dfc69818da08`	pdf-javascript-stream	PDF /JS object 7 at offset 0x4BF	7076 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `8008ca978a3f77ed333353f892e3afffb3521eb93ec9c4770e36f13dcb846349`	pdf-javascript-stream	PDF /JS object 7 at offset 0x4BF	3353 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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