Analysis
- max time kernel
1s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
22/05/2026, 22:23
General
- Target tmp4xu82dy0.exe
- Size 4.1MB
- Sample260522-2bae8afv7r
- SHA256 b669f5fe8bcb43ba30ca6fb784bc14d2bbf105be9bc66850b3354fb666795dff
Malware Config
Signatures
- Family: Glupteba
Glupteba is a modular loader written in Golang with various components.
- Glupteba payload 20 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\tmp4xu82dy0.exe"C:\Users\Admin\AppData\Local\Temp\tmp4xu82dy0.exe"1⤵
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\tmp4xu82dy0.exe"C:\Users\Admin\AppData\Local\Temp\tmp4xu82dy0.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/1940-17-0x0000000000400000-0x0000000003012000-memory.dmp
memory/2292-28-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-34-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-35-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-40-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-31-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-39-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-38-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-41-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-29-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-37-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-32-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-36-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-33-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-43-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3584-42-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3792-25-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3940-5-0x0000000005190000-0x0000000005A07000-memory.dmp
memory/3940-3-0x0000000000400000-0x0000000003012000-memory.dmp
memory/3940-2-0x0000000005190000-0x0000000005A07000-memory.dmp
memory/3940-1-0x0000000004D90000-0x0000000005184000-memory.dmp
memory/4736-10-0x0000000000400000-0x0000000003012000-memory.dmp
memory/4736-6-0x0000000004BB0000-0x0000000004FA9000-memory.dmp
memory/4920-30-0x0000000000400000-0x0000000003012000-memory.dmp