PDF malware analysis — malicious · f3c69a70d720ac7f

MALICIOUS

PDF

6.7 KB Created: 2009-05-20 15:23:34 Authoring application: jxeCOiVKsILNq (via HjvgFSdOIoaEakhQS)

MD5: d72d381fa94105bcf9a05438f61506be SHA-1: 368ffd8ac4ec6ceb61b5c8df56a2044804b271ee SHA-256: f3c69a70d720ac7f4b314a22d69306a387b0843574943dfa3ff19be7a507ac6c

110 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-35572 and a machine learning classifier indicated a high probability of maliciousness. Embedded JavaScript, obfuscated and extracted as 'javascript_obj0007_000.js', is present, suggesting it is used to exploit a vulnerability within the PDF reader. The document body contains nonsensical text, indicating it is likely a lure document. The primary attack vector appears to be the exploitation of a PDF vulnerability to execute arbitrary code via JavaScript.

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` `445b51a78f10e64dd8292159fcc6c3f800e84fccf8a4680c2461957580db7a39`	pdf-javascript-stream	PDF /JS object 7 at offset 0x465	4995 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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