PDF malware analysis — malicious · ba40ebff041dcd48

MALICIOUS

PDF

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

MD5: 2901b305aa50df486176ae2e99e1ab5d SHA-1: 36420a5d7eb8609eee0d9a2a1b0b0b6a41a728c0 SHA-256: ba40ebff041dcd48dac74e0b246c8ca3060efa271a012808657ebfb9e72e1732

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The presence of an extracted JavaScript file (javascript_obj0027_000.js) and a PDF_LAUNCH heuristic suggests that the embedded script is designed to be executed automatically upon opening the PDF, likely to download and execute a secondary payload. The obfuscation indicators within the extracted JavaScript further support this assessment.

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` `14cdd1e08e37c4c6f382bc8676197a396e2dc324f3b6f00e9d48ead4772c4b27`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3369 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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