PDF malware analysis — malicious · 7ea756ccb9b61552

MALICIOUS

PDF

9.7 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 5e9951129ee582fb27ea567787908043 SHA-1: 5bb04f502d7cd3d09558b62bbd4177b1c3b87d92 SHA-256: 7ea756ccb9b615526c396c99be75cdcdb7411079ab07f56a28fe6bb760f8781a

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_LAUNCH heuristic suggests an attempt to execute an external action, and the PDF_EVAL heuristic points to the use of eval() for obfuscated code execution within the JavaScript stream. The presence of 'javascript_obj0027_000.js' as a suspicious extracted artifact further supports this. The script's likely intent is to download and execute a second-stage payload, though the exact mechanism is obscured.

Heuristics 5

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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_obj0027_000.js` `d7ae7e2d601bcb2ac4d7f43c464d65e8b0c33950d7f47d840b7b644f8b48abd0`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3272 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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