PDF malware analysis — malicious · eb8b76f03d42ce14

MALICIOUS

PDF

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

MD5: 5fd6b2686b0b8058325bd41478364740 SHA-1: 3e275843c0408358f842adf5f6019a40d38b4d89 SHA-256: eb8b76f03d42ce144295f608fa22cdc506f31654be374ea7775f501c45402b5f

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment 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 launch an external action, and the PDF_EVAL heuristic points to the use of eval() for code execution. The extracted JavaScript file, javascript_obj0027_000.js, is likely responsible for obfuscating and executing the malicious payload. The overall intent appears to be the execution of a malicious script, likely for downloading and running further malware.

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` `e1400a08b7232479953b14d65ea9bf170f134c120c3d15e6fbb992266310f2c9`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3304 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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