PDF malware analysis — malicious · 3682ff1eec6a5f71

MALICIOUS

PDF

9.2 KB Created: 2010-05-10 15:09:19 Authoring application: TMtsfq (via lPyrNFr)

MD5: 80e0435a04a1093b22263ea994cf9520 SHA-1: 8323bb409e8823dac739aae3ac9c48887f6bf1aa SHA-256: 3682ff1eec6a5f7182d3d734af81d66c23846178c2314671936096c8d7abc734

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, flagged by multiple heuristics including PDF_JAVASCRIPT and PDF_JS. The critical ClamAV detection and ML classifier output strongly indicate malicious intent. The JavaScript stream, identified as javascript_obj0007_000.js, likely contains obfuscated code that uses an eval() call to execute a payload, as indicated by the PDF_EVAL heuristic. This points to a dropper functionality, where the PDF serves as a container for delivering further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7418074-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7418074-0
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.
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_obj0007_000.js` `93d92e173be6b52d0d691dbde6042002ab6d92a3f6186ffcda795f4aad5c2da1`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23F	8089 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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