Analysis

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

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-05-2024 09:46

General

  • Target

    da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe

  • Size

    4.1MB

  • MD5

    e4ced2a833171d359d256d3e10a01eed

  • SHA1

    88fca15424e35c197d6c51f46ce97f94e21dfd89

  • SHA256

    da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332

  • SHA512

    6d31f00ea9110abf048d5499a163d9e1c033383a37b17003aeddbcde0a48803dc040f085639c60dcb999bd85a06e1f87e4e75c20303fc45ad5840616a41ce315

  • SSDEEP

    98304:NH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ5z:Er7OagDbOPW/F2k5tRZaLrF

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 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

  • C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe
    "C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:760
    • 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:3580
    • C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe
      "C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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:4968
      • 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:3372
      • 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:3512
        • 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:2748
      • 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:1884
      • 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:2448
      • 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:2352
        • 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:380
        • 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:4772
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2776
          • 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:2820
          • 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:1460
          • 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:4040
          • 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:4724

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_haudi5tm.vvf.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

      441d666b557a9bfb51cbbe2f0cd90813

      SHA1

      1e5e778f7d99009125ab632261f44743e5afa160

      SHA256

      33872e6a5005c6da3a24f64bb4b2ffa44278834a1b27b7f8ad9546a92d74d83b

      SHA512

      351f8e1c13c8c7ec262edac1172576a2ee167f7e13390864e6d62a94634c99e71e2293f9ff2daeef97ef41c654eb966b0fee837269f6937c8bfc1a4d815f6f7e

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

      Filesize

      19KB

      MD5

      affb3054abd559b0f5163a0776c70cd7

      SHA1

      a17cd4e46d448964de94c80912eaf6cc18ceeea7

      SHA256

      cda8e89e557f8045ac9b200814723a18bf622a00826d55429330a15f6134d9b8

      SHA512

      7083c27850092d5e49b00d4413afa2f1c0dbdeb5e22e23b4c7cee8216dd885c4756cb8801984bc232392d26f7d0de14fa89e45377e0d9677aacb5ce3f04b0729

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

      Filesize

      19KB

      MD5

      fd5a8a5102485c08d83f4034e9e405c0

      SHA1

      b448245b2cb1ab761b3392affc1668b9afca62f4

      SHA256

      fe6206839d40da3cb1cfe8e3d04de88330d53ae2e63e45109c252c26f2719e1a

      SHA512

      f9a5f628ded3ed84bb2e7f70345669460a36c83d4b2a15c2f3a9588560e4c3af913a010559548acdc4f966bb383f900b220ee9e317892168239ee3c2964f42f5

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

      Filesize

      19KB

      MD5

      410ba98978d9b0ea16f873b4060bdcec

      SHA1

      fbf8fb38fcc1d1194b8728a656c394c3abc67829

      SHA256

      b2edcf7b1b8b02ab3b07028c3aa08485e2068c69a8514ab8e206b21bf1f9d88a

      SHA512

      664e904307c327682b3dd2eebf2f1bd610f57725aa905bbf9da2d7d433fb816a17568f433ea63ee29c61b276f831356384bf28301b9e16bb2e85dcd0f17a7564

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

      Filesize

      19KB

      MD5

      5d436c1058be3bb85bf0c179d9ab4ebc

      SHA1

      ffb799c5211303b0b96cebc5ad6e63f2dce48be3

      SHA256

      6943dad86123b015104d498df84ad85758da2126bdc6aa7e610d5eaddc4fed3f

      SHA512

      f791b9efc07bf29ab1ff11450c55b4b974eea15c1dba715a41dd7558876e8d94ccca84c593adbbc1e47704d75c46cd0251d12d948991e31229a3ac7988734b05

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      e4ced2a833171d359d256d3e10a01eed

      SHA1

      88fca15424e35c197d6c51f46ce97f94e21dfd89

      SHA256

      da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332

      SHA512

      6d31f00ea9110abf048d5499a163d9e1c033383a37b17003aeddbcde0a48803dc040f085639c60dcb999bd85a06e1f87e4e75c20303fc45ad5840616a41ce315

    • memory/380-138-0x0000000070EF0000-0x0000000071247000-memory.dmp

      Filesize

      3.3MB

    • memory/380-137-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

      Filesize

      304KB

    • memory/760-2-0x0000000002E20000-0x000000000370B000-memory.dmp

      Filesize

      8.9MB

    • memory/760-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/760-75-0x0000000002A20000-0x0000000002E20000-memory.dmp

      Filesize

      4.0MB

    • memory/760-76-0x0000000002E20000-0x000000000370B000-memory.dmp

      Filesize

      8.9MB

    • memory/760-74-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/760-1-0x0000000002A20000-0x0000000002E20000-memory.dmp

      Filesize

      4.0MB

    • memory/1460-183-0x0000000070E10000-0x0000000071167000-memory.dmp

      Filesize

      3.3MB

    • memory/1460-182-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

      Filesize

      304KB

    • memory/1884-90-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

      Filesize

      304KB

    • memory/1884-91-0x0000000070E20000-0x0000000071177000-memory.dmp

      Filesize

      3.3MB

    • memory/2352-219-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-213-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-204-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-207-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-210-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-234-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-231-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-195-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-216-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-222-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-225-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2352-228-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2448-111-0x0000000070E20000-0x0000000071177000-memory.dmp

      Filesize

      3.3MB

    • memory/2448-110-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

      Filesize

      304KB

    • memory/2820-169-0x0000000006F10000-0x0000000006FB4000-memory.dmp

      Filesize

      656KB

    • memory/2820-148-0x00000000056E0000-0x0000000005A37000-memory.dmp

      Filesize

      3.3MB

    • memory/2820-171-0x0000000005AC0000-0x0000000005AD5000-memory.dmp

      Filesize

      84KB

    • memory/2820-170-0x0000000007280000-0x0000000007291000-memory.dmp

      Filesize

      68KB

    • memory/2820-160-0x0000000070E10000-0x0000000071167000-memory.dmp

      Filesize

      3.3MB

    • memory/2820-159-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

      Filesize

      304KB

    • memory/2820-158-0x0000000005D30000-0x0000000005D7C000-memory.dmp

      Filesize

      304KB

    • memory/3372-72-0x0000000007750000-0x00000000077F4000-memory.dmp

      Filesize

      656KB

    • memory/3372-73-0x00000000079E0000-0x00000000079F1000-memory.dmp

      Filesize

      68KB

    • memory/3372-62-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

      Filesize

      304KB

    • memory/3372-61-0x0000000006020000-0x0000000006377000-memory.dmp

      Filesize

      3.3MB

    • memory/3372-77-0x0000000007A30000-0x0000000007A45000-memory.dmp

      Filesize

      84KB

    • memory/3372-63-0x0000000070E20000-0x0000000071177000-memory.dmp

      Filesize

      3.3MB

    • memory/3580-44-0x0000000007280000-0x000000000728E000-memory.dmp

      Filesize

      56KB

    • memory/3580-36-0x0000000074A30000-0x00000000751E1000-memory.dmp

      Filesize

      7.7MB

    • memory/3580-41-0x0000000007210000-0x000000000721A000-memory.dmp

      Filesize

      40KB

    • memory/3580-4-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

      Filesize

      4KB

    • memory/3580-40-0x00000000071D0000-0x00000000071EA000-memory.dmp

      Filesize

      104KB

    • memory/3580-39-0x0000000007810000-0x0000000007E8A000-memory.dmp

      Filesize

      6.5MB

    • memory/3580-38-0x0000000074A30000-0x00000000751E1000-memory.dmp

      Filesize

      7.7MB

    • memory/3580-43-0x0000000007230000-0x0000000007241000-memory.dmp

      Filesize

      68KB

    • memory/3580-24-0x0000000007020000-0x0000000007054000-memory.dmp

      Filesize

      208KB

    • memory/3580-45-0x0000000007290000-0x00000000072A5000-memory.dmp

      Filesize

      84KB

    • memory/3580-46-0x00000000072E0000-0x00000000072FA000-memory.dmp

      Filesize

      104KB

    • memory/3580-47-0x00000000072C0000-0x00000000072C8000-memory.dmp

      Filesize

      32KB

    • memory/3580-35-0x0000000007080000-0x000000000709E000-memory.dmp

      Filesize

      120KB

    • memory/3580-50-0x0000000074A30000-0x00000000751E1000-memory.dmp

      Filesize

      7.7MB

    • memory/3580-5-0x00000000047A0000-0x00000000047D6000-memory.dmp

      Filesize

      216KB

    • memory/3580-42-0x0000000007320000-0x00000000073B6000-memory.dmp

      Filesize

      600KB

    • memory/3580-37-0x00000000070A0000-0x0000000007144000-memory.dmp

      Filesize

      656KB

    • memory/3580-26-0x0000000070EF0000-0x0000000071247000-memory.dmp

      Filesize

      3.3MB

    • memory/3580-25-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

      Filesize

      304KB

    • memory/3580-23-0x0000000006180000-0x00000000061C6000-memory.dmp

      Filesize

      280KB

    • memory/3580-6-0x0000000004F50000-0x000000000557A000-memory.dmp

      Filesize

      6.2MB

    • memory/3580-22-0x0000000005CB0000-0x0000000005CFC000-memory.dmp

      Filesize

      304KB

    • memory/3580-21-0x0000000005C10000-0x0000000005C2E000-memory.dmp

      Filesize

      120KB

    • memory/3580-20-0x0000000005760000-0x0000000005AB7000-memory.dmp

      Filesize

      3.3MB

    • memory/3580-11-0x00000000056F0000-0x0000000005756000-memory.dmp

      Filesize

      408KB

    • memory/3580-10-0x0000000005680000-0x00000000056E6000-memory.dmp

      Filesize

      408KB

    • memory/3580-9-0x0000000074A30000-0x00000000751E1000-memory.dmp

      Filesize

      7.7MB

    • memory/3580-8-0x0000000004E60000-0x0000000004E82000-memory.dmp

      Filesize

      136KB

    • memory/3580-7-0x0000000074A30000-0x00000000751E1000-memory.dmp

      Filesize

      7.7MB

    • memory/4968-201-0x0000000002A70000-0x0000000002E73000-memory.dmp

      Filesize

      4.0MB

    • memory/4968-52-0x0000000002A70000-0x0000000002E73000-memory.dmp

      Filesize

      4.0MB

    • memory/4968-127-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB