Analysis

  • max time kernel
    166s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2023, 01:52

General

  • Target

    a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8.exe

  • Size

    4.1MB

  • MD5

    394152a57657c0bde3eb20a997d18d30

  • SHA1

    5bab818ae5295423a8131f19072c03bf8baa5171

  • SHA256

    a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8

  • SHA512

    3b5c826bb07a12f92aad62ce336e6578e9004dd03042b4f462fb31e25f18e1cee81159ec616fe647e55afb212c302f104cd17e92f76fafe43f16c451ae611e68

  • SSDEEP

    98304:DOd3sthAcDwT4/1Fur5ufQiZe2wtO6aKZfS4/DEHReGvNis:DDthnwT4/fw5m14thhAhHRea5

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 IoCs
  • Modifies Windows Firewall 1 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
  • Program crash 1 IoCs
  • 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\a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8.exe
    "C:\Users\Admin\AppData\Local\Temp\a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1524
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4324
    • C:\Users\Admin\AppData\Local\Temp\a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8.exe
      "C:\Users\Admin\AppData\Local\Temp\a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8.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:2084
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1916
      • 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:4540
        • 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:1716
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4996
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3960
      • 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:2268
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1524
        • 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:2716
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4808
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4924
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3920
          • 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:244
          • 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:1996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 760
          3⤵
          • Program crash
          PID:4388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2084 -ip 2084
      1⤵
        PID:3276

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cktj5rl3.4fa.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:\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

        3849bed4ef7f784b0c7679dae0777828

        SHA1

        b4419235f4efa009b0f8b36e51d608e9fcdd3c20

        SHA256

        5ddbc9dd361a70a1b35e35fb1f6336fdd3e02292de24f6b59395966e323d50ad

        SHA512

        d471bb52d76b3510ea91dafefcfef4a48e01c40246d3963ba2eceb67d2aabe3fa03fa9820309e971f074e5bafb3b28a4f41e56e2c4d7e6022279b37476432242

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

        Filesize

        19KB

        MD5

        94aceafc9cb5848c94c80d9831d49424

        SHA1

        325af706824d367b27d67c2022a04ac1699fbe07

        SHA256

        2ff318ee6745270f711d976d81165ccd36bc40fe8fc183f9b30e13fbf436aa5f

        SHA512

        6c0b18050ff0fd39a19ad44c89514468e94beda7431055b4d9c7204f75c1a941068c99ad7c5619399b43226d4c8a2110a261061c9e41462012617c31c4737d56

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

        Filesize

        19KB

        MD5

        2c61c748888ff8c579ce4d257a9e9c1c

        SHA1

        8db185da1936581feda71fddbf0ceed23182a972

        SHA256

        215ce3dc60fcaa31d9238c76042fdedf05a8a075c50500ac1702ece7d0b3a046

        SHA512

        16167b5b65558dfaceb821ca2912f5727223fbd47421adc75f0a2f2567827768a886890cf7c3061c254ca32b5e9603ee7a56823ffd17077fd50b18a7a06734c5

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

        Filesize

        19KB

        MD5

        66ccf11442f5ae3a55d0701a5c96705b

        SHA1

        589db4e8e6ebeb6fec739a7d3cbec58c528d9eb4

        SHA256

        3b7faa80dce81b75a079544bf1ccd362de1c7a93017bea7edd4059c54cb9c1f6

        SHA512

        9f2736117a36850662cfd086b172e19658de1d3b86d9458867f953ffe704ffc0b8cdb36f77d79fe8e4b8a9c52a4862fb2232562625a69dbe90f891372e4b9711

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

        Filesize

        19KB

        MD5

        037ae24b429102b971f3e0c24d590a63

        SHA1

        d5eed53e8d8fbadacddfe5379d0d2c554a9b20c4

        SHA256

        dc982ac434aee29fd272cf53b0ff4d922dbe6def8d83db9704b82dc0ad210e6b

        SHA512

        8c8ac58ba5572eeebdb5a6734b96006ba8c397fc922fe74a1c0a2e85f9c2696a857b11f1da585d26c514b44818c5e5672d0f9acae763df84aa3dac4ba71e1041

      • C:\Windows\rss\csrss.exe

        Filesize

        4.1MB

        MD5

        394152a57657c0bde3eb20a997d18d30

        SHA1

        5bab818ae5295423a8131f19072c03bf8baa5171

        SHA256

        a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8

        SHA512

        3b5c826bb07a12f92aad62ce336e6578e9004dd03042b4f462fb31e25f18e1cee81159ec616fe647e55afb212c302f104cd17e92f76fafe43f16c451ae611e68

      • C:\Windows\rss\csrss.exe

        Filesize

        4.1MB

        MD5

        394152a57657c0bde3eb20a997d18d30

        SHA1

        5bab818ae5295423a8131f19072c03bf8baa5171

        SHA256

        a2e2fe0fdc279cdec6311b3eebb0c732878baea92ed32be648a30b00a936b2f8

        SHA512

        3b5c826bb07a12f92aad62ce336e6578e9004dd03042b4f462fb31e25f18e1cee81159ec616fe647e55afb212c302f104cd17e92f76fafe43f16c451ae611e68

      • memory/1524-23-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/1524-9-0x00000000052C0000-0x0000000005BAB000-memory.dmp

        Filesize

        8.9MB

      • memory/1524-58-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/1524-2-0x00000000052C0000-0x0000000005BAB000-memory.dmp

        Filesize

        8.9MB

      • memory/1524-56-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/1524-3-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/1524-8-0x0000000004EC0000-0x00000000052B9000-memory.dmp

        Filesize

        4.0MB

      • memory/1524-1-0x0000000004EC0000-0x00000000052B9000-memory.dmp

        Filesize

        4.0MB

      • memory/1916-62-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/1916-73-0x0000000005F40000-0x0000000006294000-memory.dmp

        Filesize

        3.3MB

      • memory/1916-89-0x00000000077C0000-0x0000000007863000-memory.dmp

        Filesize

        652KB

      • memory/1916-79-0x0000000070A30000-0x0000000070D84000-memory.dmp

        Filesize

        3.3MB

      • memory/1916-78-0x0000000070270000-0x00000000702BC000-memory.dmp

        Filesize

        304KB

      • memory/1916-77-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/1916-90-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB

      • memory/1916-76-0x00000000068D0000-0x000000000691C000-memory.dmp

        Filesize

        304KB

      • memory/1916-63-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/1916-61-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB

      • memory/1916-100-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB

      • memory/1916-98-0x000000007F080000-0x000000007F090000-memory.dmp

        Filesize

        64KB

      • memory/1916-97-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/1916-91-0x0000000007AC0000-0x0000000007AD1000-memory.dmp

        Filesize

        68KB

      • memory/1916-94-0x0000000007B10000-0x0000000007B24000-memory.dmp

        Filesize

        80KB

      • memory/1916-93-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/1916-92-0x00000000051F0000-0x0000000005200000-memory.dmp

        Filesize

        64KB

      • memory/2084-96-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-164-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-101-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-59-0x0000000004B60000-0x0000000004F5B000-memory.dmp

        Filesize

        4.0MB

      • memory/2084-60-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-103-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-75-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2084-74-0x0000000004B60000-0x0000000004F5B000-memory.dmp

        Filesize

        4.0MB

      • memory/2268-268-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-269-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-270-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-272-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-271-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-267-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/2268-232-0x0000000000400000-0x0000000002FB8000-memory.dmp

        Filesize

        43.7MB

      • memory/3960-132-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB

      • memory/4324-30-0x0000000008320000-0x000000000899A000-memory.dmp

        Filesize

        6.5MB

      • memory/4324-25-0x0000000006CF0000-0x0000000006D3C000-memory.dmp

        Filesize

        304KB

      • memory/4324-53-0x0000000008060000-0x0000000008068000-memory.dmp

        Filesize

        32KB

      • memory/4324-52-0x0000000008110000-0x000000000812A000-memory.dmp

        Filesize

        104KB

      • memory/4324-51-0x0000000008020000-0x0000000008034000-memory.dmp

        Filesize

        80KB

      • memory/4324-50-0x0000000008010000-0x000000000801E000-memory.dmp

        Filesize

        56KB

      • memory/4324-49-0x0000000007FD0000-0x0000000007FE1000-memory.dmp

        Filesize

        68KB

      • memory/4324-48-0x0000000008070000-0x0000000008106000-memory.dmp

        Filesize

        600KB

      • memory/4324-47-0x0000000007FB0000-0x0000000007FBA000-memory.dmp

        Filesize

        40KB

      • memory/4324-46-0x0000000007EC0000-0x0000000007F63000-memory.dmp

        Filesize

        652KB

      • memory/4324-45-0x0000000007E60000-0x0000000007E7E000-memory.dmp

        Filesize

        120KB

      • memory/4324-35-0x0000000070310000-0x0000000070664000-memory.dmp

        Filesize

        3.3MB

      • memory/4324-4-0x00000000742D0000-0x0000000074A80000-memory.dmp

        Filesize

        7.7MB

      • memory/4324-5-0x00000000054F0000-0x0000000005500000-memory.dmp

        Filesize

        64KB

      • memory/4324-6-0x0000000003260000-0x0000000003296000-memory.dmp

        Filesize

        216KB

      • memory/4324-34-0x0000000070170000-0x00000000701BC000-memory.dmp

        Filesize

        304KB

      • memory/4324-7-0x0000000005B30000-0x0000000006158000-memory.dmp

        Filesize

        6.2MB

      • memory/4324-10-0x0000000005880000-0x00000000058A2000-memory.dmp

        Filesize

        136KB

      • memory/4324-11-0x0000000005A20000-0x0000000005A86000-memory.dmp

        Filesize

        408KB

      • memory/4324-12-0x0000000006160000-0x00000000061C6000-memory.dmp

        Filesize

        408KB

      • memory/4324-22-0x0000000006290000-0x00000000065E4000-memory.dmp

        Filesize

        3.3MB

      • memory/4324-33-0x0000000007E80000-0x0000000007EB2000-memory.dmp

        Filesize

        200KB

      • memory/4324-32-0x00000000054F0000-0x0000000005500000-memory.dmp

        Filesize

        64KB

      • memory/4324-31-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

        Filesize

        104KB

      • memory/4324-29-0x00000000742D0000-0x0000000074A80000-memory.dmp

        Filesize

        7.7MB

      • memory/4324-28-0x0000000007C20000-0x0000000007C96000-memory.dmp

        Filesize

        472KB

      • memory/4324-27-0x00000000054F0000-0x0000000005500000-memory.dmp

        Filesize

        64KB

      • memory/4324-26-0x0000000006E80000-0x0000000006EC4000-memory.dmp

        Filesize

        272KB

      • memory/4324-55-0x00000000742D0000-0x0000000074A80000-memory.dmp

        Filesize

        7.7MB

      • memory/4324-24-0x0000000006900000-0x000000000691E000-memory.dmp

        Filesize

        120KB

      • memory/4996-131-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB

      • memory/4996-120-0x0000000070A30000-0x0000000070D84000-memory.dmp

        Filesize

        3.3MB

      • memory/4996-119-0x0000000070270000-0x00000000702BC000-memory.dmp

        Filesize

        304KB

      • memory/4996-118-0x000000007F740000-0x000000007F750000-memory.dmp

        Filesize

        64KB

      • memory/4996-117-0x00000000025E0000-0x00000000025F0000-memory.dmp

        Filesize

        64KB

      • memory/4996-106-0x00000000025E0000-0x00000000025F0000-memory.dmp

        Filesize

        64KB

      • memory/4996-105-0x00000000025E0000-0x00000000025F0000-memory.dmp

        Filesize

        64KB

      • memory/4996-104-0x0000000074370000-0x0000000074B20000-memory.dmp

        Filesize

        7.7MB