Analysis
- max time kernel
149s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/05/2024, 19:43
General
- Target 18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b.exe
- Size 4.1MB
- Sample240520-yfdfwsfa2y
- SHA256 18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b
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
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Executes dropped EXE 2 IoCs
- 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 2 IoCs
- 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 10 IoCs
- Suspicious use of WriteProcessMemory 30 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\18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b.exe"C:\Users\Admin\AppData\Local\Temp\18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b.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\18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b.exe"C:\Users\Admin\AppData\Local\Temp\18d6edfbb6a0143789dcbe14a78544e4adf84149283c760bac97dd1011c2792b.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.
- 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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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_tx3ztms3.prf.ps1
injector.exe
powershell.exe.log
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
StartupProfileData-Interactive
csrss.exe
memory/1348-159-0x0000000000400000-0x0000000002733000-memory.dmp
memory/1608-119-0x0000000070250000-0x000000007029C000-memory.dmp
memory/1608-113-0x0000000005EE0000-0x0000000006234000-memory.dmp
memory/1608-120-0x0000000070FC0000-0x0000000071314000-memory.dmp
memory/2020-94-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2020-96-0x00000000044D0000-0x00000000048D4000-memory.dmp
memory/2020-160-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/2020-1-0x00000000044D0000-0x00000000048D4000-memory.dmp
memory/2020-78-0x00000000048E0000-0x00000000051CB000-memory.dmp
memory/2020-3-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/2020-2-0x00000000048E0000-0x00000000051CB000-memory.dmp
memory/2024-97-0x00000000709D0000-0x0000000070D24000-memory.dmp
memory/2024-95-0x0000000070250000-0x000000007029C000-memory.dmp
memory/2592-245-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-221-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-227-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-219-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-233-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-236-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-239-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-242-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-224-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-254-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-230-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-249-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2592-251-0x0000000000400000-0x0000000002733000-memory.dmp
memory/2668-56-0x0000000005600000-0x0000000005954000-memory.dmp
memory/2668-66-0x0000000070250000-0x000000007029C000-memory.dmp
memory/2668-67-0x00000000709D0000-0x0000000070D24000-memory.dmp
memory/2668-77-0x0000000006C30000-0x0000000006CD3000-memory.dmp
memory/2668-80-0x00000000071C0000-0x00000000071D4000-memory.dmp
memory/2668-79-0x0000000007170000-0x0000000007181000-memory.dmp
memory/3484-31-0x0000000070E30000-0x0000000071184000-memory.dmp
memory/3484-25-0x0000000007580000-0x00000000075F6000-memory.dmp
memory/3484-51-0x00000000079D0000-0x00000000079D8000-memory.dmp
memory/3484-50-0x0000000007A90000-0x0000000007AAA000-memory.dmp
memory/3484-49-0x00000000079A0000-0x00000000079B4000-memory.dmp
memory/3484-48-0x0000000007990000-0x000000000799E000-memory.dmp
memory/3484-46-0x0000000007950000-0x0000000007961000-memory.dmp
memory/3484-47-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-45-0x00000000079F0000-0x0000000007A86000-memory.dmp
memory/3484-44-0x0000000007930000-0x000000000793A000-memory.dmp
memory/3484-43-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-42-0x0000000007840000-0x00000000078E3000-memory.dmp
memory/3484-4-0x00000000743BE000-0x00000000743BF000-memory.dmp
memory/3484-28-0x00000000077E0000-0x0000000007812000-memory.dmp
memory/3484-5-0x0000000004C80000-0x0000000004CB6000-memory.dmp
memory/3484-6-0x0000000005380000-0x00000000059A8000-memory.dmp
memory/3484-41-0x0000000007820000-0x000000000783E000-memory.dmp
memory/3484-30-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-7-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-29-0x0000000070250000-0x000000007029C000-memory.dmp
memory/3484-8-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-9-0x00000000059B0000-0x00000000059D2000-memory.dmp
memory/3484-11-0x0000000005AC0000-0x0000000005B26000-memory.dmp
memory/3484-10-0x0000000005A50000-0x0000000005AB6000-memory.dmp
memory/3484-21-0x0000000005BF0000-0x0000000005F44000-memory.dmp
memory/3484-22-0x0000000006260000-0x000000000627E000-memory.dmp
memory/3484-23-0x00000000062A0000-0x00000000062EC000-memory.dmp
memory/3484-27-0x0000000007620000-0x000000000763A000-memory.dmp
memory/3484-24-0x00000000073D0000-0x0000000007414000-memory.dmp
memory/3484-54-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/3484-26-0x0000000007C80000-0x00000000082FA000-memory.dmp
memory/4188-141-0x0000000005550000-0x00000000058A4000-memory.dmp
memory/4188-147-0x0000000070250000-0x000000007029C000-memory.dmp
memory/4188-148-0x00000000709F0000-0x0000000070D44000-memory.dmp
memory/4528-201-0x0000000070900000-0x0000000070C54000-memory.dmp
memory/4528-200-0x0000000070170000-0x00000000701BC000-memory.dmp
memory/4528-193-0x0000000005EE0000-0x0000000006234000-memory.dmp
memory/4708-175-0x00000000702F0000-0x0000000070644000-memory.dmp
memory/4708-174-0x0000000070170000-0x00000000701BC000-memory.dmp
memory/4708-173-0x0000000006700000-0x000000000674C000-memory.dmp
memory/4708-171-0x0000000006240000-0x0000000006594000-memory.dmp
memory/4708-185-0x0000000007930000-0x00000000079D3000-memory.dmp
memory/4708-186-0x0000000007C90000-0x0000000007CA1000-memory.dmp
memory/4708-187-0x0000000005A30000-0x0000000005A44000-memory.dmp