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Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2023, 16:04

General

  • Target

    523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd.exe

  • Size

    4.2MB

  • MD5

    f8519b876e4f813506a7f61f0428f975

  • SHA1

    5702c9455e185a5ac956c6bda05c6966deb1d07d

  • SHA256

    523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd

  • SHA512

    bcce10cb03c8f39d98128e25dfe9c9bfc270a7352bd94931ee9ce93097b368ff75175d118564d78073f2a70a7ac7d08fccddb1475d5bd6957d9fbbbdadcecba5

  • SSDEEP

    98304:Qjuhrt7Qnbbz6hxJNuTSe6LpUsLTOHJq0LJM6b1YnRw:MuhrtMbX6hxJ4TSe6Le8T70LJZeO

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 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
  • 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\523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd.exe
    "C:\Users\Admin\AppData\Local\Temp\523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2056
    • C:\Users\Admin\AppData\Local\Temp\523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd.exe
      "C:\Users\Admin\AppData\Local\Temp\523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd.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:3368
      • 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:2616
      • 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:1744
        • 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:60
      • 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:1768
      • 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:4596
      • 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:4228
        • 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:2940
        • 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:1952
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1224
          • 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:2056
          • 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:2216
          • 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:2288
          • 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:3208

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ex3y3m0x.fzh.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

      c14efc1c1c76d601ed7d2d539b511e2f

      SHA1

      53811504b0199656f38eda1c52253aba5fb08bc6

      SHA256

      3b13a12f0832fdc1b0f333104712d91a23a0871525c454934f227c96b2463dfc

      SHA512

      ffd76bbfbc4b5062d7139b411ecbf51098bbfbb894cff72c007b280e8bb19aa4b3e479d11a90bff5a6fc691a3f0786d610dc40d00392825c6a22b4e9dc4111a0

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

      Filesize

      19KB

      MD5

      5b289a91205ded886068d7601d85bd32

      SHA1

      437b001db52759384346ef74d9700af73376ac91

      SHA256

      c942166c26dbdffd95863168f6e814f3266b1493523f747d6726c8c2923c6918

      SHA512

      3096505bb7c315872decfc6072b42b8473c83352160b69e08bd940d0463dba19f61fcb0fd70aeefdb152f8e8e0c71f35bed761d07b32d5bff5f030f2ef455bd9

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

      Filesize

      19KB

      MD5

      6f8c20de3b8ca55ad3eb7a24690d70cd

      SHA1

      1f73e1fea6c9f2b46740d1e7a8c90cbbc862bf74

      SHA256

      0c4a03686ac6fea60e7339cfacec9bf4ff407b550ef40dd25a09a8f38a10d38e

      SHA512

      4aceccd9ca04fcc61faf4f24bc3ccad0d47fa5e1f5cb73802e6210c67e826617142a90ab1f610d05a94c47f5735f87584e41ccfef3d133494966193d435f6733

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

      Filesize

      19KB

      MD5

      0f5a0d4be3ff340cb5dad0f99dba8339

      SHA1

      ce9812ae2b869702a5d244886ceb2859f4c1bf7e

      SHA256

      1eb4a8fdce5db2834298f0bcd2d0b5aab7818b06300e7443e988e50eb4edd0f2

      SHA512

      ae796bab3f2c0013e3b210adaf11a0e4557543e50a919c42c5a3d98e86282f5b7cd503d0224dbbea13535f1dabd81288fd4d47da8e3d00f5c61cfd5b6473f08d

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

      Filesize

      19KB

      MD5

      55d57adac7071142d8cc5221cff39bd7

      SHA1

      3278f0366561506559938cde8dc9d8c000ee4777

      SHA256

      3d5c5335d0759998bf392059ba93ec36c178ea739bd0ccbdf56f21f905c2b188

      SHA512

      32abf8b17e4ca1032b6630ae34871e40c84d6c0e1e86ffe5143fe074fb169c547450ae1a3e81176ca880e14ace44b023e1e126daddd6005d8da0657edc82030d

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      f8519b876e4f813506a7f61f0428f975

      SHA1

      5702c9455e185a5ac956c6bda05c6966deb1d07d

      SHA256

      523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd

      SHA512

      bcce10cb03c8f39d98128e25dfe9c9bfc270a7352bd94931ee9ce93097b368ff75175d118564d78073f2a70a7ac7d08fccddb1475d5bd6957d9fbbbdadcecba5

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      f8519b876e4f813506a7f61f0428f975

      SHA1

      5702c9455e185a5ac956c6bda05c6966deb1d07d

      SHA256

      523670e0386477c8b2b8276efc1ee61b49e9babb4515e57d7b1f9ba6b6ebcccd

      SHA512

      bcce10cb03c8f39d98128e25dfe9c9bfc270a7352bd94931ee9ce93097b368ff75175d118564d78073f2a70a7ac7d08fccddb1475d5bd6957d9fbbbdadcecba5

    • memory/632-170-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/632-134-0x0000000002EF0000-0x00000000037DB000-memory.dmp

      Filesize

      8.9MB

    • memory/632-204-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1768-232-0x0000000002680000-0x0000000002690000-memory.dmp

      Filesize

      64KB

    • memory/1768-209-0x0000000002680000-0x0000000002690000-memory.dmp

      Filesize

      64KB

    • memory/1768-210-0x0000000002680000-0x0000000002690000-memory.dmp

      Filesize

      64KB

    • memory/1768-221-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/1768-222-0x0000000071230000-0x0000000071584000-memory.dmp

      Filesize

      3.3MB

    • memory/1768-233-0x000000007F010000-0x000000007F020000-memory.dmp

      Filesize

      64KB

    • memory/2056-172-0x000000007F800000-0x000000007F810000-memory.dmp

      Filesize

      64KB

    • memory/2056-141-0x0000000005C10000-0x0000000005C76000-memory.dmp

      Filesize

      408KB

    • memory/2056-173-0x0000000007AF0000-0x0000000007B86000-memory.dmp

      Filesize

      600KB

    • memory/2056-174-0x0000000007A30000-0x0000000007A3E000-memory.dmp

      Filesize

      56KB

    • memory/2056-175-0x0000000007A90000-0x0000000007AAA000-memory.dmp

      Filesize

      104KB

    • memory/2056-176-0x0000000007A80000-0x0000000007A88000-memory.dmp

      Filesize

      32KB

    • memory/2056-135-0x0000000002D60000-0x0000000002D96000-memory.dmp

      Filesize

      216KB

    • memory/2056-136-0x0000000005490000-0x0000000005AB8000-memory.dmp

      Filesize

      6.2MB

    • memory/2056-171-0x00000000079E0000-0x00000000079EA000-memory.dmp

      Filesize

      40KB

    • memory/2056-137-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/2056-319-0x000000007F5E0000-0x000000007F5F0000-memory.dmp

      Filesize

      64KB

    • memory/2056-318-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

      Filesize

      64KB

    • memory/2056-169-0x0000000005090000-0x00000000050AE000-memory.dmp

      Filesize

      120KB

    • memory/2056-159-0x0000000070C50000-0x0000000070FA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2056-307-0x0000000071180000-0x00000000714D4000-memory.dmp

      Filesize

      3.3MB

    • memory/2056-158-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/2056-157-0x00000000078A0000-0x00000000078D2000-memory.dmp

      Filesize

      200KB

    • memory/2056-156-0x00000000076E0000-0x00000000076FA000-memory.dmp

      Filesize

      104KB

    • memory/2056-155-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/2056-154-0x0000000007D40000-0x00000000083BA000-memory.dmp

      Filesize

      6.5MB

    • memory/2056-153-0x0000000007640000-0x00000000076B6000-memory.dmp

      Filesize

      472KB

    • memory/2056-152-0x00000000068C0000-0x0000000006904000-memory.dmp

      Filesize

      272KB

    • memory/2056-306-0x00000000709D0000-0x0000000070A1C000-memory.dmp

      Filesize

      304KB

    • memory/2056-151-0x0000000006320000-0x000000000633E000-memory.dmp

      Filesize

      120KB

    • memory/2056-305-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

      Filesize

      64KB

    • memory/2056-304-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

      Filesize

      64KB

    • memory/2056-138-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/2056-139-0x0000000005440000-0x0000000005462000-memory.dmp

      Filesize

      136KB

    • memory/2056-140-0x0000000005B30000-0x0000000005B96000-memory.dmp

      Filesize

      408KB

    • memory/2216-333-0x00000000709D0000-0x0000000070A1C000-memory.dmp

      Filesize

      304KB

    • memory/2216-344-0x0000000004C90000-0x0000000004CA0000-memory.dmp

      Filesize

      64KB

    • memory/2216-345-0x000000007FA20000-0x000000007FA30000-memory.dmp

      Filesize

      64KB

    • memory/2216-334-0x0000000070B50000-0x0000000070EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2216-332-0x0000000004C90000-0x0000000004CA0000-memory.dmp

      Filesize

      64KB

    • memory/2616-203-0x000000007FC80000-0x000000007FC90000-memory.dmp

      Filesize

      64KB

    • memory/2616-185-0x00000000026B0000-0x00000000026C0000-memory.dmp

      Filesize

      64KB

    • memory/2616-187-0x00000000026B0000-0x00000000026C0000-memory.dmp

      Filesize

      64KB

    • memory/2616-191-0x00000000026B0000-0x00000000026C0000-memory.dmp

      Filesize

      64KB

    • memory/2616-192-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/2616-193-0x0000000071250000-0x00000000715A4000-memory.dmp

      Filesize

      3.3MB

    • memory/2940-291-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

      Filesize

      64KB

    • memory/2940-292-0x000000007F6B0000-0x000000007F6C0000-memory.dmp

      Filesize

      64KB

    • memory/2940-268-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

      Filesize

      64KB

    • memory/2940-269-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

      Filesize

      64KB

    • memory/2940-280-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/2940-281-0x0000000071230000-0x0000000071584000-memory.dmp

      Filesize

      3.3MB

    • memory/3368-265-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3368-208-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-361-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-365-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-321-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-371-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-369-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-367-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-363-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-353-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-355-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-357-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4228-359-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4596-246-0x00000000046E0000-0x00000000046F0000-memory.dmp

      Filesize

      64KB

    • memory/4596-235-0x00000000046E0000-0x00000000046F0000-memory.dmp

      Filesize

      64KB

    • memory/4596-260-0x000000007F0F0000-0x000000007F100000-memory.dmp

      Filesize

      64KB

    • memory/4596-247-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/4596-248-0x0000000071230000-0x0000000071584000-memory.dmp

      Filesize

      3.3MB

    • memory/4596-259-0x00000000046E0000-0x00000000046F0000-memory.dmp

      Filesize

      64KB