PDF / .PHZ malware analysis — malicious · 2116239980d816b1

MALICIOUS

PDF / .PHZ

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

MD5: cbfb097483a84375875d9274b090ca34 SHA-1: fdcac0168dd572bbdebf8264d120d3261d64ca68 SHA-256: 2116239980d816b1bc01f475a6bb2fd510dd408a37aea70c649e12d8ddd1ad8a

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 execute an external action, and the PDF_EVAL heuristic points to the use of eval() for obfuscation. The extracted artifact 'javascript_obj0027_000.js' is likely responsible for the malicious behavior, potentially downloading and executing a second-stage payload. The document body is heavily obfuscated and does not provide clear user-facing content.

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` `95abde99c1d83e9ffbfed3916caf5543f863b63daf75533d0158c322961f441f`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3371 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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