Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-05-2024 20:38

General

  • Target

    225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898.exe

  • Size

    4.1MB

  • MD5

    e2fd3f6c0c2dbc7067e3a4fd0431017a

  • SHA1

    7f47fcfab1f58d6edf17f85e90452a60cfae6a1f

  • SHA256

    225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898

  • SHA512

    6ababb4a85e2a4bfdcb9d6da2e68b1446ce8f0c0352ecd3911667b9ae2f23df619c654f683d0b765ca55b5409d8ebbf726f66d432af5b4901cbecb93a80deddd

  • SSDEEP

    98304:77sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNI:7zgmDywQg+foZ8mw6SO

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 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

  • C:\Users\Admin\AppData\Local\Temp\225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898.exe
    "C:\Users\Admin\AppData\Local\Temp\225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3796
    • 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:4184
    • C:\Users\Admin\AppData\Local\Temp\225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898.exe
      "C:\Users\Admin\AppData\Local\Temp\225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898.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:1740
      • 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:3212
      • 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:644
        • 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:760
      • 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:5108
      • 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:4024
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4296
        • 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:3912
        • 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:4808
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2904
          • 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:3664
          • 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:2664
          • 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:576
          • 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:4196

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u43vv00z.ljv.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      d0c46cad6c0778401e21910bd6b56b70

      SHA1

      7be418951ea96326aca445b8dfe449b2bfa0dca6

      SHA256

      9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

      SHA512

      057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      f34d03eeff9448214beffaeb207c4d98

      SHA1

      4312f89a2e763f9f756c1133ed64a2b9efb3fd55

      SHA256

      74ce73bf36746d4dd7f7ed281989d16e555bdce2afcd0f28a42baa2c7058439d

      SHA512

      93481df82ab8757e57e63afcfd7e51d5825512786e346bbbe743366559592dbe4d8a6f1f211af64e7104e3573228c1fe091d24f8b0cfde062f0928946b83d041

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      417fe977949e4d4fa34bc1b8149129cf

      SHA1

      86a2d3d133d87b1c76b1b56c31dabcf0eca1675e

      SHA256

      b570a9d5b2419b8dba98b824d546cd01a87eeb1a6a1f97a4c44703d751d760ab

      SHA512

      7cd68b840408cef102d362df0d2b740d5ba84f01abf7da894cb8827673c7930cff3ad51ab4b4c2cddf2a6ccca6fd9e8c2ec7a336d019c5db94e9372b77a031f8

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      9497639f13e4e09f2da3a234db63eba0

      SHA1

      be977c4de4d83fbe11d00f5c03a13508034cff47

      SHA256

      c6ed66a3f8fb7f773cae9e92afb66796755ba11bf3538eef446a5e4c409be492

      SHA512

      7aac1b99287fcb2c6ba2cf74d4ef50e4b5b9513c93ad2b26320b99c6ec92e0c1fdc419c17784c432a9d451f0e71720234c656b3b20c63a1beca1237306710182

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      28a1237cee45fbe82c8c73416c658e77

      SHA1

      1ebb09904c3dc785aa178600a92fbd754aee587f

      SHA256

      c06b84198686703b4e3db3481bcdc942e64f102494a58fc64f42517fb4e10df8

      SHA512

      0026945a0493a69d51a7a890fd4bae275bf9c253b30fd9719bc1549f996ebc0755a7fccf07d080217f8dc25bb1bfff0a498c8037dd5b5a66e17dbdd09c3199a6

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      c16a0afb6e13543dbdc189466414c71e

      SHA1

      94953f84a2d8c15b7272cf5cceb56e61df6e2f7b

      SHA256

      b61d45866866a3a87999ef07366ce867df479a43902e74d9b0ff07ff528bd198

      SHA512

      26a24158c16a499d12251be307c4b4280a45f6cd8397571653e69d2c33ef0459d13cd4dd9324a3c618d8f901a31c30dc352dc4e2f68660eb9fa4b040ffb9e246

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      e2fd3f6c0c2dbc7067e3a4fd0431017a

      SHA1

      7f47fcfab1f58d6edf17f85e90452a60cfae6a1f

      SHA256

      225d3470a778ccafe32bc3fc70e5f56668dc3ede3d892bcb0d579d1866bc9898

      SHA512

      6ababb4a85e2a4bfdcb9d6da2e68b1446ce8f0c0352ecd3911667b9ae2f23df619c654f683d0b765ca55b5409d8ebbf726f66d432af5b4901cbecb93a80deddd

    • memory/1740-124-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/2664-184-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

      Filesize

      304KB

    • memory/2664-185-0x0000000070D20000-0x0000000071077000-memory.dmp

      Filesize

      3.3MB

    • memory/3212-52-0x00000000061E0000-0x0000000006537000-memory.dmp

      Filesize

      3.3MB

    • memory/3212-73-0x0000000007CB0000-0x0000000007CC5000-memory.dmp

      Filesize

      84KB

    • memory/3212-72-0x0000000007C80000-0x0000000007C91000-memory.dmp

      Filesize

      68KB

    • memory/3212-71-0x0000000007910000-0x00000000079B4000-memory.dmp

      Filesize

      656KB

    • memory/3212-61-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/3212-62-0x0000000070DC0000-0x0000000071117000-memory.dmp

      Filesize

      3.3MB

    • memory/3664-161-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

      Filesize

      304KB

    • memory/3664-160-0x0000000006560000-0x00000000065AC000-memory.dmp

      Filesize

      304KB

    • memory/3664-155-0x0000000005C90000-0x0000000005FE7000-memory.dmp

      Filesize

      3.3MB

    • memory/3664-162-0x0000000070D20000-0x0000000071077000-memory.dmp

      Filesize

      3.3MB

    • memory/3664-173-0x0000000006020000-0x0000000006035000-memory.dmp

      Filesize

      84KB

    • memory/3664-172-0x00000000077B0000-0x00000000077C1000-memory.dmp

      Filesize

      68KB

    • memory/3664-171-0x0000000007460000-0x0000000007504000-memory.dmp

      Filesize

      656KB

    • memory/3796-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3796-1-0x0000000004560000-0x0000000004964000-memory.dmp

      Filesize

      4.0MB

    • memory/3796-74-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3796-2-0x0000000004970000-0x000000000525B000-memory.dmp

      Filesize

      8.9MB

    • memory/3796-127-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3796-99-0x0000000004970000-0x000000000525B000-memory.dmp

      Filesize

      8.9MB

    • memory/3796-87-0x0000000004560000-0x0000000004964000-memory.dmp

      Filesize

      4.0MB

    • memory/3912-139-0x0000000070D30000-0x0000000071087000-memory.dmp

      Filesize

      3.3MB

    • memory/3912-138-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/3912-136-0x0000000005F30000-0x0000000006287000-memory.dmp

      Filesize

      3.3MB

    • memory/4024-111-0x0000000071560000-0x00000000718B7000-memory.dmp

      Filesize

      3.3MB

    • memory/4024-105-0x0000000006210000-0x0000000006567000-memory.dmp

      Filesize

      3.3MB

    • memory/4024-110-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/4184-6-0x00000000057A0000-0x0000000005DCA000-memory.dmp

      Filesize

      6.2MB

    • memory/4184-11-0x0000000005F90000-0x0000000005FF6000-memory.dmp

      Filesize

      408KB

    • memory/4184-20-0x0000000006000000-0x0000000006357000-memory.dmp

      Filesize

      3.3MB

    • memory/4184-43-0x0000000007AD0000-0x0000000007AE1000-memory.dmp

      Filesize

      68KB

    • memory/4184-25-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/4184-23-0x0000000006A30000-0x0000000006A76000-memory.dmp

      Filesize

      280KB

    • memory/4184-35-0x0000000074940000-0x00000000750F1000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-36-0x0000000007920000-0x000000000793E000-memory.dmp

      Filesize

      120KB

    • memory/4184-21-0x00000000064B0000-0x00000000064CE000-memory.dmp

      Filesize

      120KB

    • memory/4184-10-0x0000000005EB0000-0x0000000005F16000-memory.dmp

      Filesize

      408KB

    • memory/4184-22-0x00000000064F0000-0x000000000653C000-memory.dmp

      Filesize

      304KB

    • memory/4184-37-0x0000000007940000-0x00000000079E4000-memory.dmp

      Filesize

      656KB

    • memory/4184-9-0x0000000005DD0000-0x0000000005DF2000-memory.dmp

      Filesize

      136KB

    • memory/4184-8-0x0000000074940000-0x00000000750F1000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-50-0x0000000074940000-0x00000000750F1000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-42-0x0000000007BC0000-0x0000000007C56000-memory.dmp

      Filesize

      600KB

    • memory/4184-7-0x0000000074940000-0x00000000750F1000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-46-0x0000000007B80000-0x0000000007B9A000-memory.dmp

      Filesize

      104KB

    • memory/4184-45-0x0000000007B30000-0x0000000007B45000-memory.dmp

      Filesize

      84KB

    • memory/4184-44-0x0000000007B20000-0x0000000007B2E000-memory.dmp

      Filesize

      56KB

    • memory/4184-24-0x00000000078C0000-0x00000000078F4000-memory.dmp

      Filesize

      208KB

    • memory/4184-26-0x0000000070E00000-0x0000000071157000-memory.dmp

      Filesize

      3.3MB

    • memory/4184-47-0x0000000007BA0000-0x0000000007BA8000-memory.dmp

      Filesize

      32KB

    • memory/4184-41-0x0000000007AB0000-0x0000000007ABA000-memory.dmp

      Filesize

      40KB

    • memory/4184-40-0x0000000074940000-0x00000000750F1000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-39-0x0000000007A70000-0x0000000007A8A000-memory.dmp

      Filesize

      104KB

    • memory/4184-38-0x00000000080B0000-0x000000000872A000-memory.dmp

      Filesize

      6.5MB

    • memory/4184-5-0x0000000002FE0000-0x0000000003016000-memory.dmp

      Filesize

      216KB

    • memory/4184-4-0x000000007494E000-0x000000007494F000-memory.dmp

      Filesize

      4KB

    • memory/4296-210-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-209-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-223-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-202-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-204-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-220-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-194-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-207-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-217-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-215-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-212-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4296-218-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/5108-88-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/5108-89-0x0000000070E00000-0x0000000071157000-memory.dmp

      Filesize

      3.3MB