Analysis

  • max time kernel
    41s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17/05/2024, 09:48

General

  • Target
    0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809.exe
  • Size 4.1MB
  • Sample240517-ls5ppacd2v
  • SHA256 0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809
  • 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 1 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 2 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 28 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\0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809.exe
    "C:\Users\Admin\AppData\Local\Temp\0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:788
    • 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:2464
    • C:\Users\Admin\AppData\Local\Temp\0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809.exe
      "C:\Users\Admin\AppData\Local\Temp\0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809.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:220
      • 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:2120
      • 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:2848
        • 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:2996
      • 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:4048
      • 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:4764
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4036
        • 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:2724
        • 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:1632
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:336
          • 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:1204
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3832
          • 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⤵
              PID:2204
            • 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:2292
            • C:\Windows\windefender.exe
              "C:\Windows\windefender.exe"
              4⤵
                PID:2444
                • 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⤵
                    PID:4020
                    • 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
                      PID:1484
          • C:\Windows\windefender.exe
            C:\Windows\windefender.exe
            1⤵
              PID:876

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  __PSScriptPolicyTest_3oylau4i.yar.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3oylau4i.yar.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
                  • MD5 SHA1 SHA512

                  StartupProfileData-Interactive

                  • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
                  • Size 19KB
                  • SHA256 11e0da6913072219f0dc06f6d73ce0188198712ed9e4448460997039a0fe5211
                  • MD5 SHA1 SHA512 SSDEEP

                  StartupProfileData-Interactive

                  • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
                  • Size 19KB
                  • SHA256 5a9d5b1a8c813eb7e9aa1ac4dabb4beaa1fe6285e419a1028fe29d9b2ca45687
                  • MD5 SHA1 SHA512 SSDEEP

                  StartupProfileData-Interactive

                  • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
                  • Size 19KB
                  • SHA256 6c6e73490b4c74ce61ed57d87112c3544869c1f5699214bbee3390ff25c7d284
                  • MD5 SHA1 SHA512 SSDEEP

                  StartupProfileData-Interactive

                  • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
                  • Size 19KB
                  • SHA256 6fe0390367080adae678e4c4c21864c2637cac5048d34dbffd4f461d1dbc56c5
                  • MD5 SHA1 SHA512 SSDEEP

                  StartupProfileData-Interactive

                  • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
                  • Size 19KB
                  • SHA256 91d29afdf1e4d1cb566e7251bb648bfb314af9c743f52d8b9f67fcc960e82a6d
                  • MD5 SHA1 SHA512 SSDEEP

                  csrss.exe

                  • Path C:\Windows\rss\csrss.exe
                  • Size 4.1MB
                  • SHA256 0adcfe6b65204a5a44f87d157ab8be8aab0021faffbdf79967b1b35fc1580809
                  • MD5 SHA1 SHA512 SSDEEP

                  windefender.exe

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

                  memory/220-101-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/220-130-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/788-1-0x0000000004850000-0x0000000004C4B000-memory.dmp

                  memory/788-51-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/788-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

                  memory/788-2-0x0000000004C50000-0x000000000553B000-memory.dmp

                  memory/788-78-0x0000000000400000-0x0000000000D1C000-memory.dmp

                  memory/788-54-0x0000000004C50000-0x000000000553B000-memory.dmp

                  memory/788-53-0x0000000004850000-0x0000000004C4B000-memory.dmp

                  memory/876-215-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/876-221-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/876-229-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/876-241-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/1204-176-0x0000000005970000-0x0000000005985000-memory.dmp

                  memory/1204-164-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

                  memory/1204-153-0x00000000055B0000-0x0000000005907000-memory.dmp

                  memory/1204-163-0x0000000005FD0000-0x000000000601C000-memory.dmp

                  memory/1204-175-0x00000000071A0000-0x00000000071B1000-memory.dmp

                  memory/1204-174-0x0000000006E70000-0x0000000006F14000-memory.dmp

                  memory/1204-165-0x0000000070F20000-0x0000000071277000-memory.dmp

                  memory/2120-65-0x0000000070F30000-0x0000000071287000-memory.dmp

                  memory/2120-76-0x00000000078E0000-0x00000000078F5000-memory.dmp

                  memory/2120-75-0x0000000007890000-0x00000000078A1000-memory.dmp

                  memory/2120-74-0x0000000007560000-0x0000000007604000-memory.dmp

                  memory/2120-63-0x0000000005F20000-0x0000000006277000-memory.dmp

                  memory/2120-64-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

                  memory/2444-213-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/2444-217-0x0000000000400000-0x00000000008DF000-memory.dmp

                  memory/2464-8-0x0000000005150000-0x0000000005172000-memory.dmp

                  memory/2464-6-0x0000000074B40000-0x00000000752F1000-memory.dmp

                  memory/2464-38-0x0000000074B40000-0x00000000752F1000-memory.dmp

                  memory/2464-39-0x0000000007D20000-0x000000000839A000-memory.dmp

                  memory/2464-37-0x00000000075B0000-0x0000000007654000-memory.dmp

                  memory/2464-26-0x0000000074B40000-0x00000000752F1000-memory.dmp

                  memory/2464-27-0x0000000070F40000-0x0000000071297000-memory.dmp

                  memory/2464-4-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

                  memory/2464-5-0x0000000002C50000-0x0000000002C86000-memory.dmp

                  memory/2464-25-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

                  memory/2464-7-0x0000000005350000-0x000000000597A000-memory.dmp

                  memory/2464-24-0x0000000007550000-0x0000000007584000-memory.dmp

                  memory/2464-41-0x0000000007720000-0x000000000772A000-memory.dmp

                  memory/2464-36-0x0000000007590000-0x00000000075AE000-memory.dmp

                  memory/2464-23-0x0000000006650000-0x0000000006696000-memory.dmp

                  memory/2464-22-0x00000000061D0000-0x000000000621C000-memory.dmp

                  memory/2464-42-0x0000000007830000-0x00000000078C6000-memory.dmp

                  memory/2464-21-0x0000000006120000-0x000000000613E000-memory.dmp

                  memory/2464-40-0x00000000076E0000-0x00000000076FA000-memory.dmp

                  memory/2464-9-0x0000000074B40000-0x00000000752F1000-memory.dmp

                  memory/2464-11-0x0000000005BA0000-0x0000000005C06000-memory.dmp

                  memory/2464-50-0x0000000074B40000-0x00000000752F1000-memory.dmp

                  memory/2464-20-0x0000000005C10000-0x0000000005F67000-memory.dmp

                  memory/2464-47-0x0000000007810000-0x0000000007818000-memory.dmp

                  memory/2464-46-0x00000000077F0000-0x000000000780A000-memory.dmp

                  memory/2464-45-0x00000000077A0000-0x00000000077B5000-memory.dmp

                  memory/2464-44-0x0000000007790000-0x000000000779E000-memory.dmp

                  memory/2464-43-0x0000000007740000-0x0000000007751000-memory.dmp

                  memory/2464-10-0x0000000005980000-0x00000000059E6000-memory.dmp

                  memory/2724-141-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

                  memory/2724-142-0x0000000071020000-0x0000000071377000-memory.dmp

                  memory/2724-131-0x0000000006130000-0x0000000006487000-memory.dmp

                  memory/3832-186-0x0000000005B90000-0x0000000005EE7000-memory.dmp

                  memory/3832-190-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

                  memory/3832-191-0x0000000070E50000-0x00000000711A7000-memory.dmp

                  memory/4036-218-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-242-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-254-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-250-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-151-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-246-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-222-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-226-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-206-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-230-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-234-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4036-238-0x0000000000400000-0x0000000002B0D000-memory.dmp

                  memory/4048-91-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

                  memory/4048-92-0x0000000070F30000-0x0000000071287000-memory.dmp

                  memory/4764-111-0x0000000005720000-0x0000000005A77000-memory.dmp

                  memory/4764-113-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

                  memory/4764-114-0x0000000071000000-0x0000000071357000-memory.dmp