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Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 06:37

General

  • Target

    c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a.exe

  • Size

    4.2MB

  • MD5

    e3d93cc9f7e1bf8a3746896c8e254081

  • SHA1

    2e4ae32f6090526b47f3d9c2df43803871dda504

  • SHA256

    c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a

  • SHA512

    d9c012187bf8babadf335a35b8819a42e22607ff5571cd8902ecb3e5b699b3701ce3d13ddfd5b9e37139b7727c4d5020d3587b5434caae50450913ac50b2ac8d

  • SSDEEP

    98304:uIxiUJINe1gHFmAQ6IRhLN0OuRc9DpYz7xII3zmdLQ7k:RiOG4gHFmAQ620m/q7+aSS7k

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 21 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\c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a.exe
    "C:\Users\Admin\AppData\Local\Temp\c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3228
    • C:\Users\Admin\AppData\Local\Temp\c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a.exe
      "C:\Users\Admin\AppData\Local\Temp\c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a.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:2348
      • 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:5112
      • 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:2704
        • 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:1896
      • 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:4240
      • 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:2944
      • 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:4804
        • 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:1776
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2580
          • 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:2700
          • 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:2880
          • 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:2264
          • 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:620
          • 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:4840
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 812
        2⤵
        • Program crash
        PID:2968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 868 -ip 868
      1⤵
        PID:540

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tesqggzf.ofc.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

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

        Filesize

        19KB

        MD5

        d40cd1c8862824602e4bff5b2e7ed90a

        SHA1

        351db8febf2dc094a001cbd89d892265d7066086

        SHA256

        fab4cf66c5299ede3863d3e5b6530aaf4cb5126426952d9a31236a55e809bb01

        SHA512

        5ff67d6c0198bc493c99c9409be70f59d59696a87ed13740d3d95fddeabb0a89d37733e0de488124cad2ccc1df82a18c024e40522a9089745d45456d07b7a229

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

        Filesize

        19KB

        MD5

        a73c85a804a399175e4bd57bd345f604

        SHA1

        e1ddcd5af2035a0c069eb4346160c95a6cb59374

        SHA256

        48146c1b04b13691f400c45b92be5e21be56af9e03aa0efd529a71da572128be

        SHA512

        fcd40742f80328a8c77b86e875e928be86ed41096cc38a0e55149771260ae55d7fd05c77dd10bfdf6cd5edbbad4ce60d5c0fc5e9e3aa342b86ada0381e0adcaf

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

        Filesize

        19KB

        MD5

        90b6efbcc16517c21a0cb6cc75ebe904

        SHA1

        6112ef31763a743967ec81bafb39d2971b94cf1a

        SHA256

        0dab338f6300693b64d2ed1c2dadd8c1051356a204dfc097625c8278edea58be

        SHA512

        981305b70b34b1ca389ecf12bec6419773dcf540ae255086303c73458d125ba2232e675333839c620fb590d1a4c5f0b86da764d8ceb827bee7609bd911c3bc55

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

        Filesize

        19KB

        MD5

        e3f57d5e3b3578267f03e08ec18cd23b

        SHA1

        5bdcf36fbaa8dc1b914b92dea69084461ce02a1a

        SHA256

        7b5020cd9f82b80aa673f3ebf995669e6756fa5ea9dfe3731c1fe8b272a988d8

        SHA512

        2edd8b4f2592c19ca0b96f180e0b24d675cde1e6be3bc983ca32230296814f8fc6ffb569b6699a7fffa87e7fe4d2a43418f1c65db5208b53c3af34658b314a43

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

        Filesize

        19KB

        MD5

        544006324c9c14317ee372ea8d3ef739

        SHA1

        6452648fa38d05eb45e2a6730924189eec22dd8d

        SHA256

        8094bfd4f6f6b2d2e2dffe4bba0045a6c81a7323907ffae01561c1a5483f978b

        SHA512

        16e2edc27156b73d7f20a8c5198882d35fec2e5555fa869c2c06e5395bec7602bdfb4209f21ae31ca748cf4f68b01c920e415191afa548d9fa5a5cda5ca80597

      • C:\Windows\rss\csrss.exe

        Filesize

        4.2MB

        MD5

        e3d93cc9f7e1bf8a3746896c8e254081

        SHA1

        2e4ae32f6090526b47f3d9c2df43803871dda504

        SHA256

        c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a

        SHA512

        d9c012187bf8babadf335a35b8819a42e22607ff5571cd8902ecb3e5b699b3701ce3d13ddfd5b9e37139b7727c4d5020d3587b5434caae50450913ac50b2ac8d

      • C:\Windows\rss\csrss.exe

        Filesize

        4.2MB

        MD5

        e3d93cc9f7e1bf8a3746896c8e254081

        SHA1

        2e4ae32f6090526b47f3d9c2df43803871dda504

        SHA256

        c5744c100c12c3d3a9e599a33309c8d5926131dacb7f2be75142a798e303452a

        SHA512

        d9c012187bf8babadf335a35b8819a42e22607ff5571cd8902ecb3e5b699b3701ce3d13ddfd5b9e37139b7727c4d5020d3587b5434caae50450913ac50b2ac8d

      • memory/868-24-0x0000000002B00000-0x0000000002EFE000-memory.dmp

        Filesize

        4.0MB

      • memory/868-48-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/868-58-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/868-2-0x0000000002F00000-0x00000000037EB000-memory.dmp

        Filesize

        8.9MB

      • memory/868-3-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/868-29-0x0000000002F00000-0x00000000037EB000-memory.dmp

        Filesize

        8.9MB

      • memory/868-1-0x0000000002B00000-0x0000000002EFE000-memory.dmp

        Filesize

        4.0MB

      • memory/868-31-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2348-155-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2348-60-0x0000000002A00000-0x0000000002DFF000-memory.dmp

        Filesize

        4.0MB

      • memory/2348-61-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2348-94-0x0000000002A00000-0x0000000002DFF000-memory.dmp

        Filesize

        4.0MB

      • memory/2348-98-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2944-139-0x0000000070190000-0x00000000701DC000-memory.dmp

        Filesize

        304KB

      • memory/2944-126-0x00000000052E0000-0x00000000052F0000-memory.dmp

        Filesize

        64KB

      • memory/2944-125-0x0000000074290000-0x0000000074A40000-memory.dmp

        Filesize

        7.7MB

      • memory/2944-136-0x0000000006270000-0x00000000065C4000-memory.dmp

        Filesize

        3.3MB

      • memory/2944-138-0x00000000052E0000-0x00000000052F0000-memory.dmp

        Filesize

        64KB

      • memory/3228-32-0x0000000070090000-0x00000000700DC000-memory.dmp

        Filesize

        304KB

      • memory/3228-28-0x00000000071A0000-0x00000000071BA000-memory.dmp

        Filesize

        104KB

      • memory/3228-47-0x00000000075C0000-0x0000000007656000-memory.dmp

        Filesize

        600KB

      • memory/3228-50-0x00000000741F0000-0x00000000749A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3228-51-0x0000000007500000-0x000000000750E000-memory.dmp

        Filesize

        56KB

      • memory/3228-52-0x0000000007520000-0x0000000007534000-memory.dmp

        Filesize

        80KB

      • memory/3228-53-0x0000000007570000-0x000000000758A000-memory.dmp

        Filesize

        104KB

      • memory/3228-54-0x0000000007560000-0x0000000007568000-memory.dmp

        Filesize

        32KB

      • memory/3228-57-0x00000000741F0000-0x00000000749A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3228-46-0x00000000074B0000-0x00000000074BA000-memory.dmp

        Filesize

        40KB

      • memory/3228-45-0x00000000073A0000-0x0000000007443000-memory.dmp

        Filesize

        652KB

      • memory/3228-44-0x0000000007340000-0x000000000735E000-memory.dmp

        Filesize

        120KB

      • memory/3228-4-0x00000000047E0000-0x0000000004816000-memory.dmp

        Filesize

        216KB

      • memory/3228-5-0x00000000741F0000-0x00000000749A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3228-6-0x0000000004890000-0x00000000048A0000-memory.dmp

        Filesize

        64KB

      • memory/3228-7-0x0000000004ED0000-0x00000000054F8000-memory.dmp

        Filesize

        6.2MB

      • memory/3228-8-0x0000000005530000-0x0000000005552000-memory.dmp

        Filesize

        136KB

      • memory/3228-9-0x00000000055D0000-0x0000000005636000-memory.dmp

        Filesize

        408KB

      • memory/3228-10-0x0000000005640000-0x00000000056A6000-memory.dmp

        Filesize

        408KB

      • memory/3228-20-0x00000000057B0000-0x0000000005B04000-memory.dmp

        Filesize

        3.3MB

      • memory/3228-21-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

        Filesize

        120KB

      • memory/3228-22-0x0000000005E20000-0x0000000005E6C000-memory.dmp

        Filesize

        304KB

      • memory/3228-23-0x0000000006330000-0x0000000006374000-memory.dmp

        Filesize

        272KB

      • memory/3228-25-0x0000000004890000-0x00000000048A0000-memory.dmp

        Filesize

        64KB

      • memory/3228-34-0x0000000070440000-0x0000000070794000-memory.dmp

        Filesize

        3.3MB

      • memory/3228-30-0x0000000007360000-0x0000000007392000-memory.dmp

        Filesize

        200KB

      • memory/3228-26-0x0000000007100000-0x0000000007176000-memory.dmp

        Filesize

        472KB

      • memory/3228-27-0x0000000007800000-0x0000000007E7A000-memory.dmp

        Filesize

        6.5MB

      • memory/3228-33-0x000000007EF00000-0x000000007EF10000-memory.dmp

        Filesize

        64KB

      • memory/3228-49-0x00000000074C0000-0x00000000074D1000-memory.dmp

        Filesize

        68KB

      • memory/4240-111-0x00000000027C0000-0x00000000027D0000-memory.dmp

        Filesize

        64KB

      • memory/4240-99-0x0000000005620000-0x0000000005974000-memory.dmp

        Filesize

        3.3MB

      • memory/4240-112-0x0000000070190000-0x00000000701DC000-memory.dmp

        Filesize

        304KB

      • memory/4240-113-0x0000000070930000-0x0000000070C84000-memory.dmp

        Filesize

        3.3MB

      • memory/4240-124-0x0000000074290000-0x0000000074A40000-memory.dmp

        Filesize

        7.7MB

      • memory/4240-96-0x0000000074290000-0x0000000074A40000-memory.dmp

        Filesize

        7.7MB

      • memory/4240-97-0x00000000027C0000-0x00000000027D0000-memory.dmp

        Filesize

        64KB

      • memory/4804-266-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-267-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-257-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-265-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-264-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-263-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-262-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-261-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-260-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-259-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-237-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/4804-258-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/5112-90-0x00000000079D0000-0x00000000079E4000-memory.dmp

        Filesize

        80KB

      • memory/5112-62-0x0000000074290000-0x0000000074A40000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-64-0x0000000002A50000-0x0000000002A60000-memory.dmp

        Filesize

        64KB

      • memory/5112-63-0x0000000002A50000-0x0000000002A60000-memory.dmp

        Filesize

        64KB

      • memory/5112-74-0x00000000060A0000-0x00000000063F4000-memory.dmp

        Filesize

        3.3MB

      • memory/5112-75-0x00000000067D0000-0x000000000681C000-memory.dmp

        Filesize

        304KB

      • memory/5112-76-0x0000000002A50000-0x0000000002A60000-memory.dmp

        Filesize

        64KB

      • memory/5112-77-0x0000000070190000-0x00000000701DC000-memory.dmp

        Filesize

        304KB

      • memory/5112-78-0x0000000070310000-0x0000000070664000-memory.dmp

        Filesize

        3.3MB

      • memory/5112-88-0x0000000007470000-0x0000000007513000-memory.dmp

        Filesize

        652KB

      • memory/5112-89-0x0000000007980000-0x0000000007991000-memory.dmp

        Filesize

        68KB

      • memory/5112-93-0x0000000074290000-0x0000000074A40000-memory.dmp

        Filesize

        7.7MB