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260222-snsb5ab16e10Analysis
- max time kernel
149s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
07/02/2026, 15:54
General
- Target mouse_2.exe
- Size 984KB
- Sample260207-tcbexaes9d
- SHA256 03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main payload 1 IoCs
- Masslogger family
- ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- 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 15 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\mouse_2.exe"C:\Users\Admin\AppData\Local\Temp\mouse_2.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aqkfZm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E28.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\mouse_2.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
-
C:\Users\Admin\AppData\Roaming\aqkfZm.exeC:\Users\Admin\AppData\Roaming\aqkfZm.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
mouse_2.exe.log
tmp3E28.tmp
aqkfZm.exe
memory/2096-37-0x00000000053D0000-0x00000000053E0000-memory.dmp
memory/2096-31-0x0000000008570000-0x00000000085C0000-memory.dmp
memory/2096-20-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/2096-17-0x0000000005370000-0x00000000053B4000-memory.dmp
memory/2096-16-0x00000000053D0000-0x00000000053E0000-memory.dmp
memory/2096-13-0x0000000000400000-0x00000000004A8000-memory.dmp
memory/4504-4-0x000000000AE10000-0x000000000AEA2000-memory.dmp
memory/4504-9-0x0000000008D10000-0x0000000008DBE000-memory.dmp
memory/4504-8-0x00000000074F0000-0x000000000758C000-memory.dmp
memory/4504-7-0x0000000005620000-0x0000000005630000-memory.dmp
memory/4504-6-0x00000000074E0000-0x00000000074E8000-memory.dmp
memory/4504-5-0x0000000005600000-0x000000000560A000-memory.dmp
memory/4504-0-0x0000000000A20000-0x0000000000B1C000-memory.dmp
memory/4504-3-0x000000000B420000-0x000000000B9C6000-memory.dmp
memory/4504-2-0x0000000005620000-0x0000000005630000-memory.dmp
memory/4504-1-0x0000000007AB0000-0x0000000007B70000-memory.dmp