PDF malware analysis — malicious · 51492e02b0f1cd98

MALICIOUS

PDF

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

MD5: 9e7e87db098d0098a44dc9cda0d055b2 SHA-1: e37dd03c126d8ab181340b006b058bd44be3cc87 SHA-256: 51492e02b0f1cd98f0b603d8929187515f082681ccafd13f90121ef3d24f3044

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_LAUNCH heuristic suggests an attempt to launch an external process, and the PDF_EVAL heuristic points to the use of eval() for obfuscation or dynamic code execution within the JavaScript. The extracted JavaScript file, 'javascript_obj0027_000.js', is flagged for script obfuscation. Due to the obfuscation and lack of specific indicators within the provided data, the exact payload and intent of the script cannot be definitively determined, but it is highly suspicious.

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` `01cea24b14a0a8d945e211c561ce241b1f413656833ba91b6305861543436217`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3310 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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