PDF malware analysis — malicious · ef74fa75ce641296

MALICIOUS

PDF

3.2 KB

MD5: 05b4ffbea4e905341428f3bf56724ca4 SHA-1: a1cd834ab4cc7db6ef23df0472a38c0b842e22ac SHA-256: ef74fa75ce641296c0a79c85d21a120ab7640176d1808b03156d7d77032ea7e1

128 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript, which is often used to download and execute further malicious content. The presence of a long encoded blob and a suspicious JavaScript object further supports this. The ML classifier output of 0.999979 indicates a very high likelihood of maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7321886-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7321886-0
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0006_000.js` `30faad38b078f2673b4a97c3666331d4665514702011ef57a981a2fb68815037`	pdf-javascript-stream	PDF /JS object 6 at offset 0x12D	11098 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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