Pdf.Dropper.Agent-7263792-0 PDF malware analysis — malicious · 5bdce4f678a86abd

MALICIOUS

PDF

2.6 KB

MD5: 5e0940d49a0b5022f75dd6a4cc5dc44f SHA-1: 95792c21add231682b4fb793720eb36c6e9ae60a SHA-256: 5bdce4f678a86abde0a5f68382a4016244ce9a9441970372390f1f1ff090983e

266 Risk Score

Malware Insights

Pdf.Dropper.Agent-7263792-0 · confidence 95%

MITRE ATT&CK

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

This PDF file contains obfuscated JavaScript that utilizes eval() and unescape() functions, indicating an attempt to exploit a known PDF vulnerability for client execution. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the ClamAV detection name 'Pdf.Dropper.Agent-7263792-0'. The ML classifier and heuristic firings strongly support a malicious classification.

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-7263792-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7263792-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `c3cab3163247917791b5fcbf042a765248e8e2551edf46379d9eb889fb237857`	pdf-javascript-stream	PDF /JS object 9 at offset 0xEF	9058 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 20 long hex-escaped blob(s).

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