Analysis
- max time kernel
150s - max time network
151s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
22/05/2026, 22:29
Static task
static1
Behavioral task
behavioral1
Sample
tmpftjodz77.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
tmpftjodz77.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral3
Sample
tmpftjodz77.exe
Resource
win11-20260513-en
General
- Target tmpftjodz77.exe
- Size 4.1MB
- Sample260522-2ejs3ah12s
- SHA256 4c0fab7d18bb2d638e30d65e6a98f866fbcb37e3cb32a6eeb480053493299965
- MD5 11c453b9351ed269630e5229f7e36779
- SHA1 a59a198fff3d01500c386c8a56ad96fdf17c5df8
- SHA512 cd86a9b1e2a52c5ef53665d690268c802c04926fca20b65bbaed43d29fea942cb2c24910ec5d2517f641958dcd121ba09823ddf480d847c42f7d46cdd99ee3ff
- SSDEEP 98304:uMOxS2Ood7SzRCceOKO0hMey1tcNwFYoBc:Z73otewcePS516SFYoBc
- TLSH T1A016334A3208C063E8D5807E9475ED6D6D2A3853212D5BCFFBAD660E8BF19B3D934319
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4444-3-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/3664-13-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4336-17-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-18-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/2064-26-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4248-29-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-30-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-31-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4540-32-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-33-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-34-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-35-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-36-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-37-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-38-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-39-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-40-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-41-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba behavioral1/memory/4192-42-0x0000000000400000-0x0000000002FFC000-memory.dmp family_glupteba - Windows security bypass 2 TTPs 7 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\tmpftjodz77.exe = "0" tmpftjodz77.exe - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4752 netsh.exe - Executes dropped EXE 6 IoCs
pid Process 4192 csrss.exe 4336 csrss.exe 2064 csrss.exe 4160 injector.exe 4248 csrss.exe 4540 csrss.exe - Windows security modification 2 TTPs 7 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\tmpftjodz77.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" tmpftjodz77.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" tmpftjodz77.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2058276091-3280583803-376660292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" tmpftjodz77.exe Set value (str) \REGISTRY\USER\S-1-5-21-2058276091-3280583803-376660292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe - Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN tmpftjodz77.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss tmpftjodz77.exe File created C:\Windows\rss\csrss.exe tmpftjodz77.exe - Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe - Program crash 5 IoCs
pid pid_target Process procid_target 2020 3664 WerFault.exe 86 2184 4336 WerFault.exe 99 3748 2064 WerFault.exe 100 4304 4248 WerFault.exe 117 4896 4540 WerFault.exe 121 - System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpftjodz77.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpftjodz77.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3308 schtasks.exe 3752 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4444 tmpftjodz77.exe 4444 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 3664 tmpftjodz77.exe 4336 csrss.exe 4336 csrss.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4248 csrss.exe 4248 csrss.exe 4192 csrss.exe 4192 csrss.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4192 csrss.exe 4192 csrss.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe 4160 injector.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 4444 tmpftjodz77.exe Token: SeImpersonatePrivilege 4444 tmpftjodz77.exe Token: SeDebugPrivilege 4336 csrss.exe Token: SeImpersonatePrivilege 4336 csrss.exe Token: SeSystemEnvironmentPrivilege 4192 csrss.exe Token: SeDebugPrivilege 4248 csrss.exe Token: SeImpersonatePrivilege 4248 csrss.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3664 wrote to memory of 2244 3664 tmpftjodz77.exe 91 PID 2244 wrote to memory of 4752 2244 cmd.exe 93 PID 3664 wrote to memory of 4192 3664 tmpftjodz77.exe 94 PID 4192 wrote to memory of 4160 4192 csrss.exe 115 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmpftjodz77.exe"C:\Users\Admin\AppData\Local\Temp\tmpftjodz77.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4444 -
C:\Users\Admin\AppData\Local\Temp\tmpftjodz77.exe"C:\Users\Admin\AppData\Local\Temp\tmpftjodz77.exe"2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3664 -
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⤵
- Suspicious use of WriteProcessMemory
PID:2244 -
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
- Event Triggered Execution: Netsh Helper DLL
PID:4752
-
-
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:3308
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2444
-
-
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⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4160
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:3752
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 8083⤵
- Program crash
PID:2020
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3664 -ip 36641⤵PID:3676
-
C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4336 -
C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2064 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 8283⤵
- Program crash
PID:3748
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4336 -s 8202⤵
- Program crash
PID:2184
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4336 -ip 43361⤵PID:2060
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4248 -
C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4540 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 8283⤵
- Program crash
PID:4896
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 8322⤵
- Program crash
PID:4304
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2064 -ip 20641⤵PID:3912
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4248 -ip 42481⤵PID:4044
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4540 -ip 45401⤵PID:4804
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
- Size 281KB
- SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
- MD5 d98e33b66343e7c96158444127a117f6
- SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
- SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
- SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
- TLSH T17B546C5AB2A918F8ED77823CC8525516F672B8160730D6EF03A447672F276E09D3FB21
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\rss\csrss.exe
- Size 4.1MB
- SHA256 4c0fab7d18bb2d638e30d65e6a98f866fbcb37e3cb32a6eeb480053493299965
- MD5 11c453b9351ed269630e5229f7e36779
- SHA1 a59a198fff3d01500c386c8a56ad96fdf17c5df8
- SHA512 cd86a9b1e2a52c5ef53665d690268c802c04926fca20b65bbaed43d29fea942cb2c24910ec5d2517f641958dcd121ba09823ddf480d847c42f7d46cdd99ee3ff
- SSDEEP 98304:uMOxS2Ood7SzRCceOKO0hMey1tcNwFYoBc:Z73otewcePS516SFYoBc
- TLSH T1A016334A3208C063E8D5807E9475ED6D6D2A3853212D5BCFFBAD660E8BF19B3D934319
- MD5 SHA1 SHA512 SSDEEP TLSH