Analysis
- max time kernel
298s - max time network
276s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
01/07/2026, 08:31
General
- Target PT2600000043.js
- Size 1.8MB
- Sample260701-ke4psshx5j
- SHA256 b6a2638a0eaedd6065b8fae3162ae34685c782efb70282febeef0b9470c5b60d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.trimnt.com
-
Port
587
-
Username
-
Password
Zs5s*QVx(4yLLl*1
Extracted
-
masslogger
-
exfiltration_mode
#SMTPEnabled
-
expire_time_date
00-00-0000
-
host_password
Zs5s*QVx(4yLLl*1
-
host_port
587
- host_receiver
- host_sender
-
host_server
mail.trimnt.com
-
ssl_slate
True
Signatures
- Family: MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Badlisted process makes network request 14 IoCs
Network request originating from process or tool commonly abused by malware.
- Downloads MZ/PE file 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\PT2600000043.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" --headless powershell.exe -w H -Nop -NONi -Command ". ([scriptblock]::Create($env:9NQkqgg0Skic))"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -w H -Nop -NONi -Command ". ([scriptblock]::Create($env:9NQkqgg0Skic))"3⤵
- Badlisted process makes network request
- Downloads MZ/PE file
- Registers new Windows logon scripts automatically executed at logon.
- Accesses Microsoft Outlook profiles
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
__PSScriptPolicyTest_oqy2r3el.sjw.ps1
memory/1524-0-0x000002A16BCF0000-0x000002A16BD00000-memory.dmp
memory/1524-1-0x000002A16BCF0000-0x000002A16BD00000-memory.dmp
memory/1524-9-0x000002A152F30000-0x000002A152F52000-memory.dmp
memory/1524-10-0x000002A151070000-0x000002A1510CA000-memory.dmp
memory/1524-11-0x000002A1510D0000-0x000002A1510E0000-memory.dmp
memory/1524-12-0x000002A16BCF0000-0x000002A16BD00000-memory.dmp
memory/1524-13-0x000002A16BCF0000-0x000002A16BD00000-memory.dmp
memory/1524-16-0x000002A151120000-0x000002A15113E000-memory.dmp
memory/1524-17-0x000002A153AA0000-0x000002A153AF0000-memory.dmp
memory/1524-18-0x000002A16EE20000-0x000002A16EFE2000-memory.dmp