Analysis
- max time kernel
1s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
22/05/2026, 22:19
General
- Target tmp9_smey8j.exe
- Size 4.1MB
- Sample260522-18ynmsfv5n
- SHA256 5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90
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\tmp9_smey8j.exe"C:\Users\Admin\AppData\Local\Temp\tmp9_smey8j.exe"1⤵
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\tmp9_smey8j.exe"C:\Users\Admin\AppData\Local\Temp\tmp9_smey8j.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/1324-28-0x0000000000400000-0x0000000003013000-memory.dmp
memory/3068-2-0x00000000051D0000-0x0000000005A47000-memory.dmp
memory/3068-3-0x0000000000400000-0x0000000003013000-memory.dmp
memory/3068-5-0x00000000051D0000-0x0000000005A47000-memory.dmp
memory/3068-1-0x0000000004CD0000-0x00000000050C9000-memory.dmp
memory/3188-30-0x0000000000400000-0x0000000003013000-memory.dmp
memory/3804-11-0x0000000000400000-0x0000000003013000-memory.dmp
memory/3804-6-0x0000000004DD0000-0x00000000051C6000-memory.dmp
memory/4012-17-0x0000000000400000-0x0000000003013000-memory.dmp
memory/4676-25-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-35-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-37-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-32-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-33-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-34-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-29-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-36-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-31-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-38-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-39-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-40-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-41-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-42-0x0000000000400000-0x0000000003013000-memory.dmp
memory/5056-43-0x0000000000400000-0x0000000003013000-memory.dmp