If found in an email, delete the message immediately without extracting the archive.
Upon execution, it attempts to connect to Command and Control (C2) servers to exfiltrate data or download further malicious components [2, 7]. Indicators of Compromise (IoCs)
RAR Archive (often containing a heavily obfuscated .exe or .vbs file) [2, 5]. 23599.rar
The file is currently identified as a compressed archive associated with malware delivery, frequently linked to Agent Tesla or GuLoader campaigns [1, 3]. It is typically distributed via phishing emails disguised as invoices or payment receipts [4, 6]. File Overview Filename: 23599.rar
This file is used to bypass security filters and drop secondary payloads that steal sensitive data like login credentials and browser history [4, 7]. Technical Analysis If found in an email, delete the message
After cleaning the infection, change all passwords for accounts accessed on that machine, as infostealers target browser-stored credentials [1, 7].
(Varies by specific campaign iteration; check current VirusTotal logs for the latest hash associated with this filename) [5, 8]. Behaviors: Creation of scheduled tasks for persistence [3]. Disabling of Windows Defender or local firewalls [4]. The file is currently identified as a compressed
Once extracted, the inner file (e.g., 23599.exe ) uses process hollowing or injection to hide within legitimate system processes (like RegAsm.exe or AppLaunch.exe ) [3, 8].
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