Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/05/2024, 16:55

General

  • Target

    49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe

  • Size

    4.1MB

  • MD5

    32441a4dca0530aedda30463e4f891e4

  • SHA1

    c1ba27a358e438cf3ce59c84e26a661145c27808

  • SHA256

    49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336

  • SHA512

    1009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228

  • SSDEEP

    98304:Ac7aFVXn+Lid2bryXaMbaClZg093y0sFFfdliBdPq:AX++d2b0aMbplZO0sFfSq

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\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
    "C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4920
    • 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:4656
    • C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
      "C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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:1936
      • 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:2620
      • 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:3756
        • 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:4892
      • 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:4912
      • 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:876
      • 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:4664
        • 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:1720
        • 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:2352
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4336
          • 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:1868
          • 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:3248
          • 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:4476
          • 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:2172

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ukdle5vd.1n0.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

      51594a465ea77ac003b4a96ad94e14a8

      SHA1

      eacfa554eab67c469fff214fc09bb143af85d3d3

      SHA256

      35a465ac27474e3b001dab56b24f85262b41ad0d21d202adde10535627b6c8f2

      SHA512

      dccb5d3a32c461c60b39ed5c1849beaf75b3728b52137df445dcbf8cb07222be19ffa8d98cecc73ed99f24bb59f0352c132713427249e7997281556d94b9d5a7

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

      Filesize

      19KB

      MD5

      7d4e1f0e278713090726ba10dddf710d

      SHA1

      84d25bc6f0bc4816ddb091d74b20d535332818e2

      SHA256

      ecda6ffee27474eea9210ac084b72a5817f3af066158867014c0d6aea2a0f09b

      SHA512

      80c8a65f420bc7a85d3a749a2a21311f82f161960914d978cdff58fc502fb5e3720c3553e7dd16a196edff525969c17cbce8d50c8938b604a4ebf3e1c763059e

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

      Filesize

      19KB

      MD5

      0a41651f4410f1d0b84c99012e5c4d35

      SHA1

      139a09b4c889f911b8d95bee71171f3109aef5ec

      SHA256

      97e679f4b6a0a1e7c8b0f7c0f28b97e7cfcbcb30392903dc8ce95a2863130e5a

      SHA512

      3e01cf4cddfad0561a0315bb691df43b7b12b4dabab907315641006d5e95f0474ddf08763f1aef051db0eca86ec0fa330ea24f286ba6db1c2de68ccdf04c0886

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

      Filesize

      19KB

      MD5

      b00f0d31d888940da5990a8a79ce146e

      SHA1

      c779aaa4fc8b89257597d6094c6aeca205f3435e

      SHA256

      12249da7db95e7de8fb363f86d55a41af82c581610f5fb25428d5679b90df716

      SHA512

      9134aecdc7bf2b9a43a61428d8f53a2ebfe3a804e8fef33b2e7369e9a24d1f9604ca69029a552819dccb41576fd8db648532b988a7315c16347114d822d14720

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

      Filesize

      19KB

      MD5

      479063fd7dbaee5900fa3bbc81fd4582

      SHA1

      3bc95d0f7c739330bdf484ba11e52206dcf54a9a

      SHA256

      78bfe39a2fcbd3f704bc06e270839f11fd104c1842560aa9cb0dbae4b57c6350

      SHA512

      3f501892f9057beaff0752ee0495378dd4b1fcf84cf74d18ae1d1ee50f7b719c97d9c0e9a7c190bff0e0adb1fc73595c412dc44ad6c19df865193b33a01d566a

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      32441a4dca0530aedda30463e4f891e4

      SHA1

      c1ba27a358e438cf3ce59c84e26a661145c27808

      SHA256

      49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336

      SHA512

      1009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228

    • memory/876-116-0x0000000070F60000-0x00000000712B4000-memory.dmp

      Filesize

      3.3MB

    • memory/876-115-0x0000000070DE0000-0x0000000070E2C000-memory.dmp

      Filesize

      304KB

    • memory/1720-145-0x0000000071560000-0x00000000718B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1720-144-0x0000000070DE0000-0x0000000070E2C000-memory.dmp

      Filesize

      304KB

    • memory/1868-180-0x0000000006D90000-0x0000000006E33000-memory.dmp

      Filesize

      652KB

    • memory/1868-169-0x0000000070D00000-0x0000000070D4C000-memory.dmp

      Filesize

      304KB

    • memory/1868-161-0x0000000005450000-0x00000000057A4000-memory.dmp

      Filesize

      3.3MB

    • memory/1868-167-0x00000000060C0000-0x000000000610C000-memory.dmp

      Filesize

      304KB

    • memory/1868-182-0x0000000005950000-0x0000000005964000-memory.dmp

      Filesize

      80KB

    • memory/1868-181-0x0000000007090000-0x00000000070A1000-memory.dmp

      Filesize

      68KB

    • memory/1868-170-0x0000000071490000-0x00000000717E4000-memory.dmp

      Filesize

      3.3MB

    • memory/1936-130-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/2620-64-0x00000000054A0000-0x00000000057F4000-memory.dmp

      Filesize

      3.3MB

    • memory/2620-78-0x0000000007060000-0x0000000007074000-memory.dmp

      Filesize

      80KB

    • memory/2620-77-0x0000000007010000-0x0000000007021000-memory.dmp

      Filesize

      68KB

    • memory/2620-76-0x0000000006D50000-0x0000000006DF3000-memory.dmp

      Filesize

      652KB

    • memory/2620-66-0x0000000071560000-0x00000000718B4000-memory.dmp

      Filesize

      3.3MB

    • memory/2620-65-0x0000000070DE0000-0x0000000070E2C000-memory.dmp

      Filesize

      304KB

    • memory/3248-194-0x0000000070D00000-0x0000000070D4C000-memory.dmp

      Filesize

      304KB

    • memory/3248-195-0x0000000071490000-0x00000000717E4000-memory.dmp

      Filesize

      3.3MB

    • memory/4656-48-0x0000000007310000-0x0000000007324000-memory.dmp

      Filesize

      80KB

    • memory/4656-25-0x0000000006F00000-0x0000000006F76000-memory.dmp

      Filesize

      472KB

    • memory/4656-49-0x0000000007360000-0x000000000737A000-memory.dmp

      Filesize

      104KB

    • memory/4656-50-0x0000000007350000-0x0000000007358000-memory.dmp

      Filesize

      32KB

    • memory/4656-53-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-47-0x00000000072F0000-0x00000000072FE000-memory.dmp

      Filesize

      56KB

    • memory/4656-46-0x00000000072B0000-0x00000000072C1000-memory.dmp

      Filesize

      68KB

    • memory/4656-45-0x00000000073B0000-0x0000000007446000-memory.dmp

      Filesize

      600KB

    • memory/4656-44-0x00000000072A0000-0x00000000072AA000-memory.dmp

      Filesize

      40KB

    • memory/4656-43-0x00000000071B0000-0x0000000007253000-memory.dmp

      Filesize

      652KB

    • memory/4656-28-0x0000000007150000-0x0000000007182000-memory.dmp

      Filesize

      200KB

    • memory/4656-22-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

      Filesize

      120KB

    • memory/4656-21-0x0000000005710000-0x0000000005A64000-memory.dmp

      Filesize

      3.3MB

    • memory/4656-24-0x0000000006130000-0x0000000006174000-memory.dmp

      Filesize

      272KB

    • memory/4656-23-0x0000000005C10000-0x0000000005C5C000-memory.dmp

      Filesize

      304KB

    • memory/4656-30-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-11-0x00000000055A0000-0x0000000005606000-memory.dmp

      Filesize

      408KB

    • memory/4656-10-0x0000000005530000-0x0000000005596000-memory.dmp

      Filesize

      408KB

    • memory/4656-9-0x0000000004D10000-0x0000000004D32000-memory.dmp

      Filesize

      136KB

    • memory/4656-8-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-42-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-26-0x0000000007600000-0x0000000007C7A000-memory.dmp

      Filesize

      6.5MB

    • memory/4656-6-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-7-0x0000000004F00000-0x0000000005528000-memory.dmp

      Filesize

      6.2MB

    • memory/4656-5-0x0000000000E50000-0x0000000000E86000-memory.dmp

      Filesize

      216KB

    • memory/4656-41-0x0000000007190000-0x00000000071AE000-memory.dmp

      Filesize

      120KB

    • memory/4656-4-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

      Filesize

      4KB

    • memory/4656-31-0x0000000070F60000-0x00000000712B4000-memory.dmp

      Filesize

      3.3MB

    • memory/4656-27-0x0000000006FA0000-0x0000000006FBA000-memory.dmp

      Filesize

      104KB

    • memory/4656-29-0x0000000070DE0000-0x0000000070E2C000-memory.dmp

      Filesize

      304KB

    • memory/4664-233-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-229-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-231-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-221-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-227-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-235-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-237-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-225-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-223-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-213-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-215-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-217-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4664-219-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4912-93-0x0000000070DE0000-0x0000000070E2C000-memory.dmp

      Filesize

      304KB

    • memory/4912-94-0x0000000070F60000-0x00000000712B4000-memory.dmp

      Filesize

      3.3MB

    • memory/4920-2-0x0000000004850000-0x000000000513B000-memory.dmp

      Filesize

      8.9MB

    • memory/4920-205-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4920-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4920-1-0x0000000004450000-0x0000000004850000-memory.dmp

      Filesize

      4.0MB

    • memory/4920-168-0x0000000004850000-0x000000000513B000-memory.dmp

      Filesize

      8.9MB

    • memory/4920-133-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4920-92-0x0000000004450000-0x0000000004850000-memory.dmp

      Filesize

      4.0MB