PDF malware analysis — malicious · d3ad46b54bf500c9

MALICIOUS

PDF

2.9 KB

MD5: feae1614cefc5373935be585f34f88f5 SHA-1: 1d84d6e70ca13af1c2c41e239dc27d709a41382b SHA-256: d3ad46b54bf500c965faabe1e860f52afbd2059f019798b7f0999be8423c946d

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF and JavaScript. ClamAV detection identifies it as 'Pdf.Dropper.Agent-7308166-0', suggesting it's a dropper. The embedded JavaScript, although large and potentially obfuscated, is the primary mechanism for delivering the malicious payload. The extracted file 'javascript_obj0009_000.js' is likely responsible for the download and execution of further malware.

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7308166-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7308166-0
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. (matched inside decoded stream)
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_obj0009_000.js` `2932d124d22744ab797047402553b4ac1cc57cf3c45e5ee7871638c76e25b255`	pdf-javascript-stream	PDF /JS object 9 at offset 0xD6	20097 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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