MALICIOUS
64
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF file is encrypted and contains embedded JavaScript, which is a common technique to obfuscate malicious content and evade static analysis. The presence of PDF_ENCRYPTED_WITH_JS and PDF_JAVASCRIPT heuristics indicates that the JavaScript is likely used to decrypt and execute the hidden payload. No document body text was available for analysis, but the heuristics strongly suggest a malicious intent, likely for initial access via a phishing campaign.
Heuristics 4
-
Encrypted PDF carries /JavaScript — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JSPDF declares /Encrypt and also references an executable trigger (/JavaScript). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
-
JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENTOptional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0009_000.jsd6811b27c1c9a6cac5917e20857c4c92b9166fc06f7f70642100effdd7660efd |
pdf-javascript-stream | PDF /JS object 9 at offset 0x3BA | 26134 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.