Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
17/04/2024, 03:43
General
- Target be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca.exe
- Size 4.2MB
- Sample240417-eacsmacg74
- SHA256 be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca
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) 5 IoCs
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Executes dropped EXE 4 IoCs
- UPX packed file 5 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.
- 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\be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca.exe"C:\Users\Admin\AppData\Local\Temp\be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca.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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca.exe"C:\Users\Admin\AppData\Local\Temp\be3b350d90ff4b5de8f1e84b02b548a21c343df68f2d8092e90cf1edbeb945ca.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
- 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
- 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
- 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
- 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
- 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
- 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_azmtneve.vlq.ps1
injector.exe
powershell.exe.log
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
csrss.exe
windefender.exe
memory/1156-272-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-224-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-290-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-260-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-287-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-269-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-278-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-284-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-281-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1156-275-0x0000000000400000-0x000000000310F000-memory.dmp
memory/1332-268-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/2392-106-0x0000000004D00000-0x0000000005108000-memory.dmp
memory/2392-109-0x0000000000400000-0x000000000310F000-memory.dmp
memory/2392-74-0x0000000000400000-0x000000000310F000-memory.dmp
memory/2392-59-0x0000000000400000-0x000000000310F000-memory.dmp
memory/2392-158-0x0000000000400000-0x000000000310F000-memory.dmp
memory/2392-110-0x0000000000400000-0x000000000310F000-memory.dmp
memory/2392-57-0x0000000004D00000-0x0000000005108000-memory.dmp
memory/2392-58-0x0000000005110000-0x00000000059FB000-memory.dmp
memory/3728-114-0x0000000070C30000-0x0000000070F84000-memory.dmp
memory/3728-95-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/3728-96-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3728-107-0x0000000005C20000-0x0000000005F74000-memory.dmp
memory/3728-111-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3728-113-0x000000007FC70000-0x000000007FC80000-memory.dmp
memory/3728-112-0x0000000070AB0000-0x0000000070AFC000-memory.dmp
memory/3728-125-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/3876-271-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3876-277-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/3876-286-0x0000000000400000-0x00000000008DF000-memory.dmp
memory/4164-26-0x0000000006E20000-0x0000000006E96000-memory.dmp
memory/4164-54-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/4164-51-0x0000000007230000-0x0000000007238000-memory.dmp
memory/4164-50-0x00000000072F0000-0x000000000730A000-memory.dmp
memory/4164-49-0x0000000007200000-0x0000000007214000-memory.dmp
memory/4164-48-0x00000000071F0000-0x00000000071FE000-memory.dmp
memory/4164-47-0x00000000071B0000-0x00000000071C1000-memory.dmp
memory/4164-46-0x0000000007250000-0x00000000072E6000-memory.dmp
memory/4164-45-0x0000000007190000-0x000000000719A000-memory.dmp
memory/4164-44-0x00000000070A0000-0x0000000007143000-memory.dmp
memory/4164-43-0x0000000007040000-0x000000000705E000-memory.dmp
memory/4164-33-0x0000000070B20000-0x0000000070E74000-memory.dmp
memory/4164-32-0x0000000070AB0000-0x0000000070AFC000-memory.dmp
memory/4164-31-0x0000000007060000-0x0000000007092000-memory.dmp
memory/4164-30-0x000000007EE30000-0x000000007EE40000-memory.dmp
memory/4164-29-0x0000000006DA0000-0x0000000006DBA000-memory.dmp
memory/4164-28-0x0000000007520000-0x0000000007B9A000-memory.dmp
memory/4164-27-0x00000000044E0000-0x00000000044F0000-memory.dmp
memory/4164-24-0x0000000006040000-0x0000000006084000-memory.dmp
memory/4164-23-0x0000000005B90000-0x0000000005BDC000-memory.dmp
memory/4164-22-0x0000000004820000-0x000000000483E000-memory.dmp
memory/4164-21-0x00000000056D0000-0x0000000005A24000-memory.dmp
memory/4164-20-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/4164-19-0x0000000005550000-0x00000000055B6000-memory.dmp
memory/4164-18-0x00000000054B0000-0x00000000054D2000-memory.dmp
memory/4164-7-0x0000000004BA0000-0x00000000051C8000-memory.dmp
memory/4164-8-0x00000000044E0000-0x00000000044F0000-memory.dmp
memory/4164-6-0x00000000044E0000-0x00000000044F0000-memory.dmp
memory/4164-5-0x0000000004530000-0x0000000004566000-memory.dmp
memory/4164-4-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/4424-139-0x00000000062F0000-0x0000000006644000-memory.dmp
memory/4424-141-0x000000007F940000-0x000000007F950000-memory.dmp
memory/4424-128-0x0000000005330000-0x0000000005340000-memory.dmp
memory/4424-129-0x0000000005330000-0x0000000005340000-memory.dmp
memory/4424-127-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/4424-142-0x0000000070AB0000-0x0000000070AFC000-memory.dmp
memory/4604-60-0x0000000000400000-0x000000000310F000-memory.dmp
memory/4604-1-0x0000000004E50000-0x0000000005253000-memory.dmp
memory/4604-2-0x0000000005260000-0x0000000005B4B000-memory.dmp
memory/4604-3-0x0000000000400000-0x000000000310F000-memory.dmp
memory/4604-25-0x0000000000400000-0x000000000310F000-memory.dmp
memory/4604-56-0x0000000004E50000-0x0000000005253000-memory.dmp
memory/4984-77-0x0000000071250000-0x00000000715A4000-memory.dmp
memory/4984-75-0x00000000033A0000-0x00000000033B0000-memory.dmp
memory/4984-71-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/4984-73-0x00000000033A0000-0x00000000033B0000-memory.dmp
memory/4984-72-0x00000000033A0000-0x00000000033B0000-memory.dmp
memory/4984-61-0x0000000006240000-0x0000000006594000-memory.dmp
memory/4984-76-0x0000000070AB0000-0x0000000070AFC000-memory.dmp
memory/4984-87-0x0000000007AC0000-0x0000000007B63000-memory.dmp
memory/4984-88-0x0000000007DA0000-0x0000000007DB1000-memory.dmp
memory/4984-89-0x0000000007DF0000-0x0000000007E04000-memory.dmp
memory/4984-93-0x0000000074C10000-0x00000000753C0000-memory.dmp