PDF malware analysis — malicious · 12b8b2d740b25288

MALICIOUS

PDF

6.7 KB

MD5: fa1e6899abaecc3b571750d50c04a09c SHA-1: 1f2ee2595069460a46ced482ec07f36eb5b32ba5 SHA-256: 12b8b2d740b25288c2ca2e3e23377abb06b624546b530e74fadfd52c3c65535c

68 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript streams that are heavily obfuscated. These scripts reference a suspicious URL, indicating an intent to download and execute a secondary payload. The ML classifier and static triage heuristics strongly suggest malicious activity, consistent with a downloader or dropper.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

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.
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://www1.strongscannersgld.it.cx/?4jgc78p=WM3Ux3Sd6Nia59jSpKuTlp6U2ebfpJyVmJ%2FJlmhx0abWmOPhpKSWlJ6elqmpmqGKoN2klGdop5nV1NHgpMawpZTeztawmpLXWA%3D%3D

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0005_000.js` `1b0b16faa62061548255924ebc3d79b7b20db65b11e85d3cfeb62c4bcbfe9c54`	pdf-javascript-stream	PDF /JS object 5 at offset 0x1D4	6082 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s). Carved artifact contains 1 long hex-escaped blob(s).
`javascript_obj0005_001.js` `fe45c0c9301ea8b6f2ba9eb5dbba9c1ea3b03e6cf7dd4f1d3940b14a8b12f8cb`	pdf-javascript-stream	PDF /JS object 5 at offset 0x1F7	6365 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s). Carved artifact contains 1 long hex-escaped blob(s).

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