Analysis
- max time kernel
149s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
16/09/2026, 04:13
General
- Target big.exe
- Size 1.1MB
- Sample260916-es4ztsfl9y
- SHA256 b167c870aca1fd606e8e7118de04f1bdfd712983e89dea76952321212e1700ab
Malware Config
Extracted
-
masslogger
-
https://api.telegram.org/bot8012948610:AAH4T2bfY_PPyXgKFGVw8rmhjBzj3nREYAE/sendMessage?chat_id=403948698
-
exfiltration_mode
#TGEnabled
-
expire_time_date
2298-07-03
-
ssl_slate
False
Signatures
- Family: MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\big.exe"C:\Users\Admin\AppData\Local\Temp\big.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\piceous\tabulations.exe"C:\Users\Admin\AppData\Local\Temp\big.exe"2⤵
- Creates a file in the Startup directory
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\big.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
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
tabulations.exe
memory/1396-2-0x00000000040E0000-0x00000000042E0000-memory.dmp
memory/3680-10-0x0000000003CC0000-0x0000000003EC0000-memory.dmp
memory/4808-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4808-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4808-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4808-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4808-16-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-17-0x0000000003190000-0x00000000031C0000-memory.dmp
memory/4808-18-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-19-0x0000000005E90000-0x0000000006434000-memory.dmp
memory/4808-20-0x0000000005880000-0x00000000058AE000-memory.dmp
memory/4808-21-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-26-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-108-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-140-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-138-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-470-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-469-0x0000000005990000-0x0000000005A2C000-memory.dmp
memory/4808-136-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-134-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-132-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-130-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-128-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-126-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-124-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-122-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-120-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-118-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-116-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-114-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-112-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-110-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-106-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-102-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-100-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-98-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-96-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-94-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-92-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-90-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-88-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-86-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-84-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-82-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-80-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-78-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-76-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-74-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-72-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-68-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-66-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-64-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-62-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-60-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-58-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-56-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-54-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-52-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-50-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-48-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-46-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-44-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-42-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-40-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-38-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-36-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-34-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-32-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-30-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-28-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-24-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-22-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-104-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-70-0x0000000005880000-0x00000000058A8000-memory.dmp
memory/4808-471-0x0000000006B10000-0x0000000006B60000-memory.dmp
memory/4808-472-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4808-473-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-474-0x0000000006E30000-0x0000000006FF2000-memory.dmp
memory/4808-475-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-476-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/4808-477-0x0000000006D80000-0x0000000006E12000-memory.dmp
memory/4808-478-0x0000000006D60000-0x0000000006D6A000-memory.dmp
memory/4808-479-0x00000000058D0000-0x00000000058E0000-memory.dmp