Analysis
- max time kernel
1s - max time network
150s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
- submitted
22/05/2026, 22:06
General
- Target tmptd9qp1fv.exe
- Size 4.1MB
- Sample260522-11fsvsft6q
- SHA256 2a1d1d328b63ae957c6694ffd5c090ab7fc2c776e640d7ab15c6963b7959da43
Malware Config
Signatures
- Family: Glupteba
Glupteba is a modular loader written in Golang with various components.
- Glupteba payload 19 IoCs
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- System Location Discovery: System Language Discovery 1 TTPs 1 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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes
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C:\Users\Admin\AppData\Local\Temp\tmptd9qp1fv.exe"C:\Users\Admin\AppData\Local\Temp\tmptd9qp1fv.exe"1⤵
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\tmptd9qp1fv.exe"C:\Users\Admin\AppData\Local\Temp\tmptd9qp1fv.exe"2⤵
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"1⤵
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C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe1⤵
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C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
injector.exe
csrss.exe
memory/320-16-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/540-29-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/752-27-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-36-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-39-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-43-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-42-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-41-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-40-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-38-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-30-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-31-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-32-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-33-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-34-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-35-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2076-37-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/2708-24-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/4776-11-0x0000000000400000-0x0000000000C91000-memory.dmp
memory/4776-6-0x0000000000F50000-0x0000000001342000-memory.dmp
memory/5188-1-0x0000000000FE0000-0x00000000013D0000-memory.dmp
memory/5188-2-0x0000000002D70000-0x00000000035E7000-memory.dmp
memory/5188-4-0x0000000002D70000-0x00000000035E7000-memory.dmp
memory/5188-3-0x0000000000400000-0x0000000000C91000-memory.dmp