PDF / .PHP malware analysis — malicious · 3063e6eb3f26817c

MALICIOUS

PDF / .PHP

5.1 KB

MD5: 0adfea3b2cc5fc2fc6277b53aaa30524 SHA-1: 2fc3ebecc61e089d1ee54d7d29c06f23d585f02d SHA-256: 3063e6eb3f26817cb148102a5813bc2e49acf856c81ef05c39e65ad36190f5b4

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL and PDF_FROMCHARCODE firings suggest that the JavaScript is obfuscated and uses eval() and String.fromCharCode() for execution. The extracted artifact 'javascript_obj54798_000.js' is likely the source of this obfuscated script. The primary function of this script appears to be downloading and executing a second-stage payload, which is a common technique for delivering malware.

Heuristics 5

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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj54798_000.js` `31cdfe689aea57f6a9692b14745f62a91e1400b6447bdcd86d18c0eae4cb41ae`	pdf-javascript-stream	PDF /JS object 54798 at offset 0x134	8385 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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