PDF malware analysis — malicious · 73a8c1fe674df8aa

MALICIOUS

PDF

6.3 KB

MD5: 0f612bc618960df8e6f25bf7be577ab4 SHA-1: 1da36693674931959447935f8030326327554ca0 SHA-256: 73a8c1fe674df8aa62f482441d1b5367320740d54d6df71f4afcd70333f0bf2c

68 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript that is obfuscated but appears to be designed to download and execute a second-stage payload from a remote URL. The ML classifier strongly indicates maliciousness, and the embedded URL is the primary indicator of compromise. The JavaScript's obfuscation and its direct call to a suspicious URL suggest a downloader or droppper functionality.

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://www2.safeuascaner.arm.ee/?uykvs=mdzY2rDY2cuL6srXoJmenaKb7d%2FisKSSmZrZlauVlqOcmOnsqKemppOelaaVqZyH2tivpqmbrZnUw8jXsqPJs4feztayrJHplw%3D%3D

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0005_000.js` `9d9b16a1cdf9ba40ad8bb5b85ac57b99c72350a2ab681cde5f1cb8a017485b23`	pdf-javascript-stream	PDF /JS object 5 at offset 0x1CF	5624 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` `2e750d1e293df670b8466894b0c57c760334eefc94873b2cc81b7cdba185ce63`	pdf-javascript-stream	PDF /JS object 5 at offset 0x1F2	5907 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).

Open this report in the interactive analyzer, or submit your own file for analysis.