Analysis
- max time kernel
118s - max time network
120s - platform
windows11-21h2_x64 - resource
win11-20250502-en - resource tags
- submitted
23/05/2025, 13:22
General
- Target PO 32300337.exe
- Size 586KB
- Sample250523-qmrcbswp17
- SHA256 348d96514ff4a0006e2209eaa1e6e07cef0f28dfacec3aa4e69741a8b9637db6
Malware Config
Extracted
-
masslogger
-
exfiltration_mode
#SMTPEnabled
-
expire_time_date
2025-06-14
-
host_password
DhakaHome2024
-
host_port
587
- host_receiver
- host_sender
-
host_server
mail.dhakahome.com
-
ssl_slate
True
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Masslogger family
- 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 3 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"C:\Users\Admin\AppData\Local\Temp\PO 32300337.exe"2⤵
- 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
PO 32300337.exe.log
memory/3536-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3536-19-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3536-18-0x0000000006760000-0x0000000006922000-memory.dmp
memory/3536-17-0x0000000006440000-0x0000000006490000-memory.dmp
memory/3536-16-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3536-15-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3924-4-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3924-8-0x00000000744DE000-0x00000000744DF000-memory.dmp
memory/3924-9-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3924-10-0x0000000007F00000-0x0000000007F62000-memory.dmp
memory/3924-7-0x00000000054F0000-0x0000000005506000-memory.dmp
memory/3924-6-0x0000000005520000-0x00000000055BC000-memory.dmp
memory/3924-14-0x00000000744D0000-0x0000000074C81000-memory.dmp
memory/3924-5-0x00000000051C0000-0x00000000051CA000-memory.dmp
memory/3924-0-0x00000000744DE000-0x00000000744DF000-memory.dmp
memory/3924-3-0x0000000005230000-0x00000000052C2000-memory.dmp
memory/3924-2-0x0000000005740000-0x0000000005CE6000-memory.dmp
memory/3924-1-0x0000000000680000-0x0000000000718000-memory.dmp