Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-05-2024 08:22

General

  • Target

    558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe

  • Size

    4.1MB

  • MD5

    4859a99b80e9ad16171b6847d5c4b5b1

  • SHA1

    d5c41a9f040d85489e34a6904d7147fdb753a41c

  • SHA256

    558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf

  • SHA512

    afd1d9c804174f173798eff312653b5303166b891db98ca2d182e075f75ea3ecb3c4ecfd17ff8a354f2d4aebe25838c78502191a6685f2cfbf9c7cd62aa456e8

  • SSDEEP

    98304:YcO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxW:YcO3d2wQ4Q8FyLwnXJ+AxvtU75c1jsE

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 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\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe
    "C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2820
    • 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:2924
    • C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe
      "C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.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:2560
      • 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:4404
      • 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:1956
        • 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:2040
      • 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:5012
      • 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:3044
      • 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:1788
        • 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:2400
        • 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:3176
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2828
          • 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:2036
          • 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:2116
          • 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:3720
          • 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:4832

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sqgu1fgm.efr.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

      df10dd7d0149319d5d2516da9cfcb647

      SHA1

      b8157ca533653fa540dd246d5ff0366bc0a8e3ce

      SHA256

      de301af4eb48e3038e79bfd5a3e859115be5952e2370c9a6e9f0fcc704007483

      SHA512

      29ab077659a7caa32c4988f2baa8533a0f4b5473d922e5d5f2fd27027841001f83cbf5d6a5141d2c580678fd532b1f3b1200b55ed626cd8ba11f7e0d9d17daa1

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

      Filesize

      19KB

      MD5

      e92347206fa857e7ed91addcf26e5c28

      SHA1

      01c077f6836a0e171723d5a0d13c4a331fdafe18

      SHA256

      7dae4b30464bae564bc519d588d0b5eaed8b5655f5cf3b6c0cdd1cdf7641b83e

      SHA512

      c51019d963b811af4f40134ade19209c5254d4510e4a1b859eac4dfba0c766c5553e0825e3d0b5eafbeb236174d4bc275308b2ba9013300d48010537a09eeb19

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

      Filesize

      19KB

      MD5

      5c275b6a6d70766fa76f75d9b392ac6e

      SHA1

      519be50e5550129ccd2c46e4434c58b26a054fe2

      SHA256

      6c53bf537bf3fea3cf06db29a91a7529dfc83f8640235649a0d06dc1bf64ccdb

      SHA512

      e012c76f79c456c7b0ea86a0c4f2103cf7d7727fe0e8efef8ac557a1e03f1b713aa63414014a41dac2a5a05ded206290ca79ac04fd0b4f39970c5d2fd07e141d

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

      Filesize

      19KB

      MD5

      d715b16a5e2fd31663fe00cadf10c6ac

      SHA1

      c086666939fdbc4430e53e21260c237fb4b593bb

      SHA256

      9840127f8474905297b57577bdb9579668822026c8fe93ba1b36f0b9db89804f

      SHA512

      a30dac479722a937494310c6fe833955bf32159e0974e412116fed0fe98588d1d9ff82dcc9d62508951897b84a87892b63d400637ee3bce30a9f0a6102a1c884

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

      Filesize

      19KB

      MD5

      19eadc914bd7f32c4f3eef6fe108ebc6

      SHA1

      a4b275d2a1f3ad90e527a2e5e4bee9eff6fb5815

      SHA256

      e28ac0ec3d0f6e210d24e0789d95c081b92230a263ec31eb8aa16e0cb6dd67ef

      SHA512

      6921b4f473b49756dbf55e934ac34b0ceec1089d3be40ecd5be665a7e642b7c651cb5f0b41cd338cd1d40a6e521cfa9163f5c773d177867c7bbc99691ddeabf9

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      4859a99b80e9ad16171b6847d5c4b5b1

      SHA1

      d5c41a9f040d85489e34a6904d7147fdb753a41c

      SHA256

      558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf

      SHA512

      afd1d9c804174f173798eff312653b5303166b891db98ca2d182e075f75ea3ecb3c4ecfd17ff8a354f2d4aebe25838c78502191a6685f2cfbf9c7cd62aa456e8

    • memory/1788-210-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-213-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-216-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-207-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-204-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-219-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-195-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-222-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-225-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-228-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-231-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-234-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1788-237-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/2036-160-0x0000000070360000-0x00000000706B7000-memory.dmp

      Filesize

      3.3MB

    • memory/2036-156-0x0000000006400000-0x0000000006757000-memory.dmp

      Filesize

      3.3MB

    • memory/2036-171-0x0000000006780000-0x0000000006795000-memory.dmp

      Filesize

      84KB

    • memory/2036-170-0x0000000007F70000-0x0000000007F81000-memory.dmp

      Filesize

      68KB

    • memory/2036-169-0x0000000007BD0000-0x0000000007C74000-memory.dmp

      Filesize

      656KB

    • memory/2036-159-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/2036-158-0x0000000006A00000-0x0000000006A4C000-memory.dmp

      Filesize

      304KB

    • memory/2116-185-0x00000000702D0000-0x0000000070627000-memory.dmp

      Filesize

      3.3MB

    • memory/2116-184-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/2116-182-0x0000000005B50000-0x0000000005EA7000-memory.dmp

      Filesize

      3.3MB

    • memory/2400-137-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/2400-136-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/2400-134-0x00000000064D0000-0x0000000006827000-memory.dmp

      Filesize

      3.3MB

    • memory/2560-146-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/2820-97-0x0000000004860000-0x0000000004C5C000-memory.dmp

      Filesize

      4.0MB

    • memory/2820-2-0x0000000004C60000-0x000000000554B000-memory.dmp

      Filesize

      8.9MB

    • memory/2820-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2820-172-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2820-1-0x0000000004860000-0x0000000004C5C000-memory.dmp

      Filesize

      4.0MB

    • memory/2820-124-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/2820-125-0x0000000004C60000-0x000000000554B000-memory.dmp

      Filesize

      8.9MB

    • memory/2924-24-0x00000000076E0000-0x0000000007714000-memory.dmp

      Filesize

      208KB

    • memory/2924-44-0x0000000007920000-0x000000000792E000-memory.dmp

      Filesize

      56KB

    • memory/2924-36-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-4-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

      Filesize

      4KB

    • memory/2924-5-0x0000000002A90000-0x0000000002AC6000-memory.dmp

      Filesize

      216KB

    • memory/2924-37-0x0000000007740000-0x00000000077E4000-memory.dmp

      Filesize

      656KB

    • memory/2924-6-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-35-0x0000000007720000-0x000000000773E000-memory.dmp

      Filesize

      120KB

    • memory/2924-7-0x0000000005630000-0x0000000005C5A000-memory.dmp

      Filesize

      6.2MB

    • memory/2924-26-0x0000000070420000-0x0000000070777000-memory.dmp

      Filesize

      3.3MB

    • memory/2924-38-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-39-0x0000000007EB0000-0x000000000852A000-memory.dmp

      Filesize

      6.5MB

    • memory/2924-8-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-50-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-9-0x0000000005410000-0x0000000005432000-memory.dmp

      Filesize

      136KB

    • memory/2924-47-0x00000000079A0000-0x00000000079A8000-memory.dmp

      Filesize

      32KB

    • memory/2924-46-0x0000000007980000-0x000000000799A000-memory.dmp

      Filesize

      104KB

    • memory/2924-11-0x0000000005520000-0x0000000005586000-memory.dmp

      Filesize

      408KB

    • memory/2924-45-0x0000000007930000-0x0000000007945000-memory.dmp

      Filesize

      84KB

    • memory/2924-10-0x00000000054B0000-0x0000000005516000-memory.dmp

      Filesize

      408KB

    • memory/2924-43-0x00000000078D0000-0x00000000078E1000-memory.dmp

      Filesize

      68KB

    • memory/2924-20-0x0000000005DA0000-0x00000000060F7000-memory.dmp

      Filesize

      3.3MB

    • memory/2924-42-0x00000000079C0000-0x0000000007A56000-memory.dmp

      Filesize

      600KB

    • memory/2924-25-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/2924-41-0x00000000078B0000-0x00000000078BA000-memory.dmp

      Filesize

      40KB

    • memory/2924-40-0x0000000007870000-0x000000000788A000-memory.dmp

      Filesize

      104KB

    • memory/2924-23-0x0000000006820000-0x0000000006866000-memory.dmp

      Filesize

      280KB

    • memory/2924-22-0x00000000062F0000-0x000000000633C000-memory.dmp

      Filesize

      304KB

    • memory/2924-21-0x00000000062B0000-0x00000000062CE000-memory.dmp

      Filesize

      120KB

    • memory/3044-109-0x0000000070480000-0x00000000707D7000-memory.dmp

      Filesize

      3.3MB

    • memory/3044-108-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/4404-62-0x00000000704A0000-0x00000000707F7000-memory.dmp

      Filesize

      3.3MB

    • memory/4404-72-0x0000000007E50000-0x0000000007E61000-memory.dmp

      Filesize

      68KB

    • memory/4404-57-0x00000000063F0000-0x0000000006747000-memory.dmp

      Filesize

      3.3MB

    • memory/4404-73-0x0000000007EA0000-0x0000000007EB5000-memory.dmp

      Filesize

      84KB

    • memory/4404-71-0x0000000007B00000-0x0000000007BA4000-memory.dmp

      Filesize

      656KB

    • memory/4404-61-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/5012-88-0x0000000070480000-0x00000000707D7000-memory.dmp

      Filesize

      3.3MB

    • memory/5012-77-0x0000000006320000-0x0000000006677000-memory.dmp

      Filesize

      3.3MB

    • memory/5012-87-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB