PDF malware analysis — malicious · ef4ef8020abbcb98

MALICIOUS

PDF

13.3 KB

MD5: b53ca0884e318507d5571f710bec1070 SHA-1: ebd0e24155b62a7f01a3f9fbbbe059a9346c4177 SHA-256: ef4ef8020abbcb980bca213a415fb6d6dbd1ab503fa9d3b6fa6abf011cdf95e7

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, flagged by multiple heuristics, which is designed to download and execute a second-stage payload from the URL http://www2.personalbosuite.rr.nu/?oz49tt=k92hnbHZ6MqY6NjSnqGXpqmb3ejRrOBlnqmnopynpqLRh%2BDVrKSomqueoLNobqia3NivpaOfh83E0eWyu8iwleqdnbGnltiW. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as Pdf.Dropper.Agent-7448143-0.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7448143-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7448143-0
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.
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.
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://www2.personalbosuite.rr.nu/?oz49tt=k92hnbHZ6MqY6NjSnqGXpqmb3ejRrOBlnqmnopynpqLRh%2BDVrKSomqueoLNobqia3NivpaOfh83E0eWyu8iwleqdnbGnltiW

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0005_000.js` `e3c111d26dec4808643e664440f83f30b0f2dd965b179ae9eb55a059f99974f9`	pdf-javascript-stream	PDF /JS object 5 at offset 0x1AE	12820 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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