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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • 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, 21:52

General

  • Target

    34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020.exe

  • Size

    4.1MB

  • MD5

    b9c066bfd5930f01490b888a93cda864

  • SHA1

    7ba8f12c7cf394d9822086afb05c2d8ca59bc4d6

  • SHA256

    34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020

  • SHA512

    874beda4f139173dcbfcdf5a0ad42da6452a493423b6c1d4a6d1851bcc01e75068db4e3598e15b4f3b15f40618171a4808cc42592e00e31f7ea2a979f3386fc2

  • SSDEEP

    98304:0X33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0ra:0XPWAwQyCdJYw8Kgga

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\34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020.exe
    "C:\Users\Admin\AppData\Local\Temp\34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3628
    • 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:1932
    • C:\Users\Admin\AppData\Local\Temp\34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020.exe
      "C:\Users\Admin\AppData\Local\Temp\34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020.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:1524
      • 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:3960
      • 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:3268
        • 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:2520
      • 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:2860
      • 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:1352
      • 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:1128
        • 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:4980
        • 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:4708
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3108
          • 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:4832
          • 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:1696
          • 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:2536
          • 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:3944

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_523mieo2.cu1.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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      19KB

      MD5

      e2d2b504a4a5d84abd05b1a3a1f46617

      SHA1

      adc38af0cb884849716077f899dce20340beded3

      SHA256

      9cf6c1de6f3e6688b5a18bb6be472361a43d2a14de240f02eba53f11c3caec25

      SHA512

      da828de6cc8847e2a8752bdd9729121c572d706cdec8d602857e65d7510baeb716fd92c03363f4e7db698d4588c9b5ea1e729c94640dd5f765f0ce0e1e0245fd

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

      Filesize

      19KB

      MD5

      fe5d77f4e1811a31f3658d06aff95fe6

      SHA1

      b2a18e756d5a304267e535c6085e077f0a075e59

      SHA256

      55b23238d1c267ca9f43acd1cf9978ed58b7aca10d78b2a1ab27e7901c358deb

      SHA512

      5070a9f2dd1ad63fefb01ab42baefaafbb63812f99709bf8a4fba9130dc65e8fe78ae6f7636f233cfeaf7d451e4e2253df55e460b741484d3efb5fbbdeb35f4d

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

      Filesize

      19KB

      MD5

      6c4cd76c7bfff5169692879c1994f922

      SHA1

      f66cc0929b874b3cc7cea201b1385d208b23ead3

      SHA256

      5bb3787fcad6e2a4ce6f83bc8539ff93450ed737fd055450cba6e3760ef4b310

      SHA512

      82745fdc25ac0cc8d5c772a4f44bfbc8a4e0df2eefa64df03c4378247ab6db179bad3bd3f33e946fa52a854a6462f577cb15be042da3ccf798615d6b2332944d

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

      Filesize

      19KB

      MD5

      2b0e827c13faf5512ad51e8dfc011fe3

      SHA1

      cae3dcd237e3e44b12be6d3f664c3c4311f84b89

      SHA256

      1c7a9c4e88ce48e535605a5abff1bc2e2d1f63bbd7f4a427f9579e5c030bc76c

      SHA512

      1f2a8dac8fd33a50f344c670d953ba4028804c81ca799c539d9b6b008cfd24ef3f414d4ce046a0834ae8576bf2280f0df02030e49addaf9c2775ef92c3d83aff

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

      Filesize

      19KB

      MD5

      55e05c1afdd591d0252b26eca18eebfb

      SHA1

      cb406dee0a8e11f7e8eaa38f6074a484f390e3d5

      SHA256

      746ba4fd712b47a6678440ba02edfe70f641f3bee903f92995a9a2e8bc842b5b

      SHA512

      bdb54f3fc2d56f085445ab49b36a24a83ab5a91968ba9fa4ab3fd2a4e1881204a39116ed9db1216e5904f77923b5d7bdb06cc3e3bce6133f9b3494dbf508b46b

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      b9c066bfd5930f01490b888a93cda864

      SHA1

      7ba8f12c7cf394d9822086afb05c2d8ca59bc4d6

      SHA256

      34877ab10419ca3f26a8fb29e8e7c0992ac56ce72bfb91980924c582b32bb020

      SHA512

      874beda4f139173dcbfcdf5a0ad42da6452a493423b6c1d4a6d1851bcc01e75068db4e3598e15b4f3b15f40618171a4808cc42592e00e31f7ea2a979f3386fc2

    • memory/1128-223-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-239-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-233-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-215-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-217-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-231-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-229-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-227-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-225-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-219-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-221-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-237-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1128-235-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1352-115-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/1352-116-0x0000000070E60000-0x00000000711B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1524-132-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1696-196-0x0000000070600000-0x000000007064C000-memory.dmp

      Filesize

      304KB

    • memory/1696-194-0x00000000057D0000-0x0000000005B24000-memory.dmp

      Filesize

      3.3MB

    • memory/1696-197-0x0000000070780000-0x0000000070AD4000-memory.dmp

      Filesize

      3.3MB

    • memory/1932-23-0x0000000006710000-0x000000000675C000-memory.dmp

      Filesize

      304KB

    • memory/1932-30-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-48-0x0000000007E10000-0x0000000007E24000-memory.dmp

      Filesize

      80KB

    • memory/1932-49-0x0000000007F00000-0x0000000007F1A000-memory.dmp

      Filesize

      104KB

    • memory/1932-50-0x0000000007E50000-0x0000000007E58000-memory.dmp

      Filesize

      32KB

    • memory/1932-53-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-46-0x0000000007DC0000-0x0000000007DD1000-memory.dmp

      Filesize

      68KB

    • memory/1932-45-0x0000000007E60000-0x0000000007EF6000-memory.dmp

      Filesize

      600KB

    • memory/1932-44-0x0000000007DA0000-0x0000000007DAA000-memory.dmp

      Filesize

      40KB

    • memory/1932-42-0x0000000007CB0000-0x0000000007D53000-memory.dmp

      Filesize

      652KB

    • memory/1932-43-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-41-0x0000000007C90000-0x0000000007CAE000-memory.dmp

      Filesize

      120KB

    • memory/1932-28-0x0000000007C50000-0x0000000007C82000-memory.dmp

      Filesize

      200KB

    • memory/1932-31-0x0000000070880000-0x0000000070BD4000-memory.dmp

      Filesize

      3.3MB

    • memory/1932-29-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/1932-47-0x0000000007E00000-0x0000000007E0E000-memory.dmp

      Filesize

      56KB

    • memory/1932-27-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

      Filesize

      104KB

    • memory/1932-26-0x0000000008100000-0x000000000877A000-memory.dmp

      Filesize

      6.5MB

    • memory/1932-25-0x0000000007A00000-0x0000000007A76000-memory.dmp

      Filesize

      472KB

    • memory/1932-24-0x0000000007840000-0x0000000007884000-memory.dmp

      Filesize

      272KB

    • memory/1932-22-0x00000000066D0000-0x00000000066EE000-memory.dmp

      Filesize

      120KB

    • memory/1932-21-0x00000000060E0000-0x0000000006434000-memory.dmp

      Filesize

      3.3MB

    • memory/1932-11-0x0000000006030000-0x0000000006096000-memory.dmp

      Filesize

      408KB

    • memory/1932-10-0x0000000005F10000-0x0000000005F76000-memory.dmp

      Filesize

      408KB

    • memory/1932-9-0x0000000005710000-0x0000000005732000-memory.dmp

      Filesize

      136KB

    • memory/1932-8-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-7-0x0000000005870000-0x0000000005E98000-memory.dmp

      Filesize

      6.2MB

    • memory/1932-6-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-5-0x0000000003100000-0x0000000003136000-memory.dmp

      Filesize

      216KB

    • memory/1932-4-0x000000007484E000-0x000000007484F000-memory.dmp

      Filesize

      4KB

    • memory/2860-91-0x0000000005530000-0x0000000005884000-memory.dmp

      Filesize

      3.3MB

    • memory/2860-93-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/2860-94-0x0000000070860000-0x0000000070BB4000-memory.dmp

      Filesize

      3.3MB

    • memory/3628-208-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3628-2-0x0000000004A20000-0x000000000530B000-memory.dmp

      Filesize

      8.9MB

    • memory/3628-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3628-1-0x0000000004610000-0x0000000004A16000-memory.dmp

      Filesize

      4.0MB

    • memory/3628-169-0x0000000004A20000-0x000000000530B000-memory.dmp

      Filesize

      8.9MB

    • memory/3628-127-0x0000000004610000-0x0000000004A16000-memory.dmp

      Filesize

      4.0MB

    • memory/3628-126-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3960-76-0x0000000007980000-0x0000000007A23000-memory.dmp

      Filesize

      652KB

    • memory/3960-66-0x0000000070E60000-0x00000000711B4000-memory.dmp

      Filesize

      3.3MB

    • memory/3960-55-0x0000000006130000-0x0000000006484000-memory.dmp

      Filesize

      3.3MB

    • memory/3960-65-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/3960-77-0x0000000007CC0000-0x0000000007CD1000-memory.dmp

      Filesize

      68KB

    • memory/3960-78-0x0000000007D10000-0x0000000007D24000-memory.dmp

      Filesize

      80KB

    • memory/4832-182-0x0000000007130000-0x0000000007141000-memory.dmp

      Filesize

      68KB

    • memory/4832-183-0x00000000059E0000-0x00000000059F4000-memory.dmp

      Filesize

      80KB

    • memory/4832-168-0x0000000006100000-0x000000000614C000-memory.dmp

      Filesize

      304KB

    • memory/4832-170-0x0000000070600000-0x000000007064C000-memory.dmp

      Filesize

      304KB

    • memory/4832-166-0x00000000055D0000-0x0000000005924000-memory.dmp

      Filesize

      3.3MB

    • memory/4832-181-0x0000000006E10000-0x0000000006EB3000-memory.dmp

      Filesize

      652KB

    • memory/4832-171-0x00000000707B0000-0x0000000070B04000-memory.dmp

      Filesize

      3.3MB

    • memory/4980-145-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/4980-146-0x0000000070860000-0x0000000070BB4000-memory.dmp

      Filesize

      3.3MB