PDF malware analysis — malicious · 9ffb55afc1318d84

MALICIOUS

PDF

6.5 KB Created: 2009-05-15 16:50:35 Authoring application: PgPWeXlGRbvTrb (via UEaPnugBOeYKlAYFLXNmxswJ)

MD5: 0144bdeb7924220e18c4a4bbb53bc7bc SHA-1: 6131b2ddc8266cdce19cfb452d03fe9b999d1533 SHA-256: 9ffb55afc1318d84d75dd82e17f464983f49c48421275173df3e0c104aa12c05

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged by ClamAV as Pdf.Exploit.Agent-35572 and a machine learning classifier indicated a high probability of maliciousness. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, suggests an attempt to exploit a vulnerability. The embedded JavaScript stream, named javascript_obj0007_000.js, is likely responsible for downloading and executing a secondary payload, which is a common technique for malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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` `b8b1948c4e6e747f118ba8ba99dae880b82274e4ec45cc89415d5da7ec14d18e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x3D9	4926 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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