Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
16/05/2024, 01:56
General
- Target f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30.exe
- Size 4.1MB
- Sample240516-ccwbmsff23
- SHA256 f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30
Malware Config
Signatures
- Glupteba
Glupteba is a modular loader written in Golang with various components.
- Glupteba payload 19 IoCs
- Detects Windows executables referencing non-Windows User-Agents 17 IoCs
- Detects executables Discord URL observed in first stage droppers 17 IoCs
- Detects executables containing URLs to raw contents of a Github gist 17 IoCs
- Detects executables containing artifacts associated with disabling Widnows Defender 17 IoCs
- Detects executables referencing many varying, potentially fake Windows User-Agents 17 IoCs
- UPX dump on OEP (original entry point) 6 IoCs
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Executes dropped EXE 4 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 2 IoCs
- 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.
- Drops file in System32 directory 7 IoCs
- 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.
- Drops file in Windows directory 4 IoCs
- Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs
Using powershell.exe command.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies data under HKEY_USERS 64 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 12 IoCs
- Suspicious use of WriteProcessMemory 36 IoCs
- 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
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C:\Users\Admin\AppData\Local\Temp\f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30.exe"C:\Users\Admin\AppData\Local\Temp\f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30.exe"C:\Users\Admin\AppData\Local\Temp\f61ea31ba042cb4b9640ed853b792cf3a5984c56bac9f937fd638bb6e1efbe30.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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⤵
- Suspicious use of WriteProcessMemory
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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\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_uvex3cs1.1q0.ps1
injector.exe
powershell.exe.log
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
csrss.exe
windefender.exe
memory/436-96-0x0000000070580000-0x00000000705CC000-memory.dmp
memory/436-97-0x0000000070D20000-0x0000000071074000-memory.dmp
memory/1592-42-0x0000000007D40000-0x0000000007DE3000-memory.dmp
memory/1592-6-0x00000000746E0000-0x0000000074E90000-memory.dmp
memory/1592-23-0x0000000006810000-0x000000000685C000-memory.dmp
memory/1592-24-0x0000000006CD0000-0x0000000006D14000-memory.dmp
memory/1592-25-0x0000000007890000-0x0000000007906000-memory.dmp
memory/1592-27-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/1592-26-0x0000000008190000-0x000000000880A000-memory.dmp
memory/1592-29-0x0000000070580000-0x00000000705CC000-memory.dmp
memory/1592-28-0x0000000007CE0000-0x0000000007D12000-memory.dmp
memory/1592-30-0x00000000746E0000-0x0000000074E90000-memory.dmp
memory/1592-5-0x00000000051A0000-0x00000000051D6000-memory.dmp
memory/1592-41-0x0000000007D20000-0x0000000007D3E000-memory.dmp
memory/1592-31-0x0000000070700000-0x0000000070A54000-memory.dmp
memory/1592-43-0x00000000746E0000-0x0000000074E90000-memory.dmp
memory/1592-45-0x0000000007E30000-0x0000000007E3A000-memory.dmp
memory/1592-21-0x0000000006370000-0x00000000066C4000-memory.dmp
memory/1592-46-0x0000000007EF0000-0x0000000007F86000-memory.dmp
memory/1592-47-0x0000000007E50000-0x0000000007E61000-memory.dmp
memory/1592-48-0x0000000007E90000-0x0000000007E9E000-memory.dmp
memory/1592-49-0x0000000007EA0000-0x0000000007EB4000-memory.dmp
memory/1592-51-0x0000000007EE0000-0x0000000007EE8000-memory.dmp
memory/1592-50-0x0000000007F90000-0x0000000007FAA000-memory.dmp
memory/1592-54-0x00000000746E0000-0x0000000074E90000-memory.dmp
memory/1592-7-0x00000000058A0000-0x0000000005EC8000-memory.dmp
memory/1592-22-0x0000000006760000-0x000000000677E000-memory.dmp
memory/1592-8-0x00000000746E0000-0x0000000074E90000-memory.dmp
memory/1592-9-0x0000000005ED0000-0x0000000005EF2000-memory.dmp
memory/1592-4-0x00000000746EE000-0x00000000746EF000-memory.dmp
memory/1592-10-0x0000000005FF0000-0x0000000006056000-memory.dmp
memory/1592-11-0x0000000006110000-0x0000000006176000-memory.dmp
memory/1640-69-0x0000000070D20000-0x0000000071074000-memory.dmp
memory/1640-65-0x0000000005970000-0x0000000005CC4000-memory.dmp
memory/1640-80-0x0000000007530000-0x0000000007541000-memory.dmp
memory/1640-81-0x0000000007580000-0x0000000007594000-memory.dmp
memory/1640-68-0x0000000070580000-0x00000000705CC000-memory.dmp
memory/1640-79-0x0000000007200000-0x00000000072A3000-memory.dmp
memory/1692-137-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/1692-1-0x0000000004860000-0x0000000004C5C000-memory.dmp
memory/1692-66-0x0000000004860000-0x0000000004C5C000-memory.dmp
memory/1692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/1692-67-0x0000000004C60000-0x000000000554B000-memory.dmp
memory/1692-95-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/1692-2-0x0000000004C60000-0x000000000554B000-memory.dmp
memory/1692-44-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/1840-173-0x00000000704A0000-0x00000000704EC000-memory.dmp
memory/1840-170-0x0000000006180000-0x00000000064D4000-memory.dmp
memory/1840-172-0x00000000066D0000-0x000000000671C000-memory.dmp
memory/1840-174-0x0000000070640000-0x0000000070994000-memory.dmp
memory/1840-184-0x00000000078F0000-0x0000000007993000-memory.dmp
memory/1840-185-0x0000000007C10000-0x0000000007C21000-memory.dmp
memory/1840-186-0x00000000060C0000-0x00000000060D4000-memory.dmp
memory/2068-149-0x0000000070D00000-0x0000000071054000-memory.dmp
memory/2068-148-0x0000000070580000-0x00000000705CC000-memory.dmp
memory/2224-136-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/2988-120-0x0000000070D00000-0x0000000071054000-memory.dmp
memory/2988-119-0x0000000070580000-0x00000000705CC000-memory.dmp
memory/2988-117-0x0000000005CD0000-0x0000000006024000-memory.dmp
memory/3580-241-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3580-233-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3580-228-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3676-224-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3676-229-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3808-197-0x0000000005D20000-0x0000000006074000-memory.dmp
memory/3808-199-0x00000000704A0000-0x00000000704EC000-memory.dmp
memory/3808-200-0x0000000070620000-0x0000000070974000-memory.dmp
memory/5104-232-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-220-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-236-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-240-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-211-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-244-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-248-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-252-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-256-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-260-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-264-0x0000000000400000-0x0000000002B0B000-memory.dmp
memory/5104-268-0x0000000000400000-0x0000000002B0B000-memory.dmp