Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/05/2024, 11:14

General

  • Target
    d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e.exe
  • Size 4.1MB
  • Sample240519-nb5z8sfc33
  • SHA256 d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 18 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 8 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 6 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.

  • Program crash 1 IoCs
  • 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 11 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

  • C:\Users\Admin\AppData\Local\Temp\d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e.exe
    "C:\Users\Admin\AppData\Local\Temp\d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1252
    • C:\Users\Admin\AppData\Local\Temp\d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e.exe
      "C:\Users\Admin\AppData\Local\Temp\d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e.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
      PID:5552
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5540
      • C:\Windows\system32\cmd.exe
        C:\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:1236
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:1940
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2404
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1168
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • 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
        PID:3656
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:772
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:2016
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4308
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            PID:2824
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5560
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:3952
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:5228
          • C:\Windows\windefender.exe
            "C:\Windows\windefender.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:5568
            • C:\Windows\SysWOW64\cmd.exe
              cmd.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
              PID:2516
              • C:\Windows\SysWOW64\sc.exe
                sc 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
                PID:1556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 652
        2⤵
        • Program crash
        PID:1568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3136 -ip 3136
      1⤵
        PID:4932
      • C:\Windows\windefender.exe
        C:\Windows\windefender.exe
        1⤵
        • Executes dropped EXE
        • Modifies data under HKEY_USERS
        PID:2564

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            __PSScriptPolicyTest_n2cz32mz.klf.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n2cz32mz.klf.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            injector.exe

            • Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            • Size 281KB
            • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
            • MD5 SHA1 SHA512 SSDEEP

            powershell.exe.log

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
            • Size 2KB
            • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
            • MD5 SHA1 SHA512

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 d082b13ef2367a0535dd30064b222e76380eda7660545a314dbfdb62d831945e
            • MD5 SHA1 SHA512 SSDEEP

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 33902ebcfbb03db27b9436ebe5c23b1d48f2ed03cba5f7dd5e7509b132d8d454
            • MD5 SHA1 SHA512 SSDEEP

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 a8133686328ae837b9839993b78e6176c378e5f60a26a6af33c7ba7bb02a7c73
            • MD5 SHA1 SHA512 SSDEEP

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 4fa152715a20727f9ecac8394c609d5144b31b3a270d756f5292f5add9dcf22b
            • MD5 SHA1 SHA512 SSDEEP

            csrss.exe

            • Path C:\Windows\rss\csrss.exe
            • Size 4.1MB
            • SHA256 d7ebf04231b14f7ea4edbab44d6096ececa27bd4d6b2fc80da68b656b0c4cf9e
            • MD5 SHA1 SHA512 SSDEEP

            windefender.exe

            • Path C:\Windows\windefender.exe
            • Size 2.0MB
            • SHA256 166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
            • MD5 SHA1 SHA512 SSDEEP

            memory/772-146-0x0000000005DD0000-0x0000000006124000-memory.dmp

            memory/772-148-0x00000000064D0000-0x000000000651C000-memory.dmp

            memory/772-149-0x0000000070A90000-0x0000000070ADC000-memory.dmp

            memory/772-150-0x0000000070C70000-0x0000000070FC4000-memory.dmp

            memory/772-160-0x00000000076E0000-0x0000000007783000-memory.dmp

            memory/772-161-0x00000000079F0000-0x0000000007A01000-memory.dmp

            memory/772-162-0x0000000006250000-0x0000000006264000-memory.dmp

            memory/1168-119-0x0000000070B30000-0x0000000070B7C000-memory.dmp

            memory/1168-120-0x0000000070CB0000-0x0000000071004000-memory.dmp

            memory/1252-21-0x0000000006240000-0x0000000006594000-memory.dmp

            memory/1252-53-0x0000000074B90000-0x0000000075340000-memory.dmp

            memory/1252-31-0x0000000074B90000-0x0000000075340000-memory.dmp

            memory/1252-30-0x0000000070FE0000-0x0000000071334000-memory.dmp

            memory/1252-28-0x0000000007D50000-0x0000000007D82000-memory.dmp

            memory/1252-41-0x0000000007D90000-0x0000000007DAE000-memory.dmp

            memory/1252-42-0x0000000074B90000-0x0000000075340000-memory.dmp

            memory/1252-43-0x0000000007DB0000-0x0000000007E53000-memory.dmp

            memory/1252-44-0x0000000007EA0000-0x0000000007EAA000-memory.dmp

            memory/1252-45-0x0000000007F60000-0x0000000007FF6000-memory.dmp

            memory/1252-46-0x0000000007EC0000-0x0000000007ED1000-memory.dmp

            memory/1252-47-0x0000000007F00000-0x0000000007F0E000-memory.dmp

            memory/1252-48-0x0000000007F10000-0x0000000007F24000-memory.dmp

            memory/1252-49-0x0000000008000000-0x000000000801A000-memory.dmp

            memory/1252-50-0x0000000007F50000-0x0000000007F58000-memory.dmp

            memory/1252-29-0x0000000070A30000-0x0000000070A7C000-memory.dmp

            memory/1252-26-0x0000000008240000-0x00000000088BA000-memory.dmp

            memory/1252-27-0x0000000007B10000-0x0000000007B2A000-memory.dmp

            memory/1252-25-0x0000000007B40000-0x0000000007BB6000-memory.dmp

            memory/1252-24-0x0000000006C00000-0x0000000006C44000-memory.dmp

            memory/1252-23-0x0000000006880000-0x00000000068CC000-memory.dmp

            memory/1252-22-0x0000000006800000-0x000000000681E000-memory.dmp

            memory/1252-10-0x00000000060F0000-0x0000000006156000-memory.dmp

            memory/1252-11-0x00000000061D0000-0x0000000006236000-memory.dmp

            memory/1252-9-0x0000000005800000-0x0000000005822000-memory.dmp

            memory/1252-8-0x0000000074B90000-0x0000000075340000-memory.dmp

            memory/1252-6-0x00000000058D0000-0x0000000005EF8000-memory.dmp

            memory/1252-7-0x0000000074B90000-0x0000000075340000-memory.dmp

            memory/1252-5-0x00000000051F0000-0x0000000005226000-memory.dmp

            memory/1252-4-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

            memory/2404-95-0x0000000006220000-0x0000000006574000-memory.dmp

            memory/2404-98-0x0000000070CB0000-0x0000000071004000-memory.dmp

            memory/2404-97-0x0000000070B30000-0x0000000070B7C000-memory.dmp

            memory/2564-204-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/2564-229-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/2564-207-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/2564-211-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/2564-217-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/3136-57-0x0000000004470000-0x0000000004D5B000-memory.dmp

            memory/3136-56-0x0000000000400000-0x0000000000D1C000-memory.dmp

            memory/3136-1-0x0000000004070000-0x000000000446F000-memory.dmp

            memory/3136-2-0x0000000004470000-0x0000000004D5B000-memory.dmp

            memory/3136-55-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3136-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

            memory/3656-214-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-224-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-216-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-220-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-212-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-226-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-210-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-208-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-206-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-197-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-222-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-228-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/3656-218-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/5540-67-0x00000000062B0000-0x0000000006604000-memory.dmp

            memory/5540-68-0x0000000006910000-0x000000000695C000-memory.dmp

            memory/5540-82-0x0000000007E80000-0x0000000007E94000-memory.dmp

            memory/5540-81-0x0000000007E30000-0x0000000007E41000-memory.dmp

            memory/5540-80-0x0000000007B20000-0x0000000007BC3000-memory.dmp

            memory/5540-70-0x00000000712D0000-0x0000000071624000-memory.dmp

            memory/5540-69-0x0000000070B30000-0x0000000070B7C000-memory.dmp

            memory/5552-134-0x0000000000400000-0x0000000002364000-memory.dmp

            memory/5560-188-0x0000000007000000-0x00000000070A3000-memory.dmp

            memory/5560-174-0x0000000005980000-0x0000000005CD4000-memory.dmp

            memory/5560-176-0x0000000005E10000-0x0000000005E5C000-memory.dmp

            memory/5560-178-0x0000000070B30000-0x0000000070E84000-memory.dmp

            memory/5560-177-0x00000000709B0000-0x00000000709FC000-memory.dmp

            memory/5560-189-0x0000000007370000-0x0000000007381000-memory.dmp

            memory/5560-190-0x00000000056D0000-0x00000000056E4000-memory.dmp

            memory/5568-205-0x0000000000400000-0x00000000008DF000-memory.dmp

            memory/5568-202-0x0000000000400000-0x00000000008DF000-memory.dmp