PDF / .TXT malware analysis — malicious · 7c412976da22013a

MALICIOUS

PDF / .TXT

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

MD5: 28148f417a1d6fe1b609905d4f141e09 SHA-1: be55a117c2c9e70f96327466bb2799c4e8835fc8 SHA-256: 7c412976da22013a50bef7236241c5c0ce22d8ec4eab99d008b1f3cc6780a22f

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The presence of an eval() call within the JavaScript stream (PDF_EVAL) suggests that the script is designed to execute arbitrary code. The PDF_LAUNCH heuristic further indicates an attempt to trigger an external action. While the exact payload is obfuscated, the combination of these indicators points to a malicious document leveraging JavaScript for execution. No specific family could be identified.

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` `b829ad09b0398e2f45718498e19732ac82d0b65dd0334dd52df505b5571bc7b9`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3327 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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