Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/04/2024, 23:30

General

  • Target

    a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7.exe

  • Size

    4.2MB

  • MD5

    ba6a1e5da1e8dffa9ce0e17aa5ef1acc

  • SHA1

    562e17a3b8ac1d793d2181371d7c93b1ca3505ee

  • SHA256

    a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7

  • SHA512

    950bba1578613b460c03d404a4b6beeef24df413faa910dda6fbec4805ead55b66d0ab2d1742e1bb861a61e3c36c087321eaa29fc113a7e1a3ccb2cab8462c78

  • SSDEEP

    98304:uNqkCei/RpwTNwvC/d0zkTzoLKVJHo/KUEsELUhP0F0GS:uueAwA5oTznVGKlAco

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 18 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
  • 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\a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7.exe
    "C:\Users\Admin\AppData\Local\Temp\a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3752
    • C:\Users\Admin\AppData\Local\Temp\a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7.exe
      "C:\Users\Admin\AppData\Local\Temp\a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7.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:2920
      • 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:1388
      • 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:1100
        • 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:944
      • 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:3732
      • 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:2108
      • 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:2780
        • 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:400
        • 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:1012
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2660
          • 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:4556
          • 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:3172
          • 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:4364
          • 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:4272

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z0zbtkmc.jsc.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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      Filesize

      19KB

      MD5

      c50885ecaf72bda73c379a691ac60aa3

      SHA1

      4530f017c24d29d54c003d8d7e0f07ccbf5747fa

      SHA256

      78fa2b61d9e64cdb57369bb2775d4c7c05681d555d1712597f1198338b5cba7e

      SHA512

      90d8629e38376d66ba8063a6fc63441d54728d4c9c0c77063df507303c67a5376bbb0dea4be647f3e93509426608826f8229e61f0294f5fb75e2fe2e7ec546f5

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

      Filesize

      19KB

      MD5

      93aed7de9a3d6c9e056073bd4f2c3e8a

      SHA1

      6a5a50a2ba4b02e3339101dff6910c2059c0dae9

      SHA256

      9c58d0b5a39fac718bdf0ade2486400ec6f1aef5808943cbd4e50bc8fe827118

      SHA512

      1eef1af8d2d5a051f6e5b856b7bc0e43520eac077614c6a0c0f3c58ca0d8538c78ad8acdbd8648354626b5eae0bf75117331007b8303cfb454abd8a31b4d0f7e

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

      Filesize

      19KB

      MD5

      bb9abc6520840062ca0bb3b0984e14ee

      SHA1

      cbf8842fe9a3d0500ac95c7784c568e74be14852

      SHA256

      7bd8a274272db99ecc2fa5e68e1b3a7da7e432e41df1374ad61e3a9d5e8b14da

      SHA512

      1627cd7ce4c2965fa40f982c919e0c0229e1fd5bfd5d4458b73c8c96efa1edd38ba549bbdda6d016d7b2caf0de80e09d8566255dfc62047dac83278209c28912

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

      Filesize

      19KB

      MD5

      200eedf8a2cd8d48dce84a2997729ea8

      SHA1

      df37c74aee0a0fc19c58fa94a9831dd7ce0ae013

      SHA256

      e53d134616209d0584338b18999de7761f3c20e45ccc00c227e3069ccf5089ca

      SHA512

      f9059642c0acfe9e84b8e0dfe03b7128e4c66c5e8cf3d34bff7f53cb455ed48a13db27c8eeaf30282e337437743270acf0ff3bc741633017a62631f8509288de

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

      Filesize

      19KB

      MD5

      7a999ed430e2d7d886c2a227063c97c8

      SHA1

      c6000ba73a8cd91304690273f0bdce6d412d55df

      SHA256

      fe30f3567364fec9067d401c1d93db61781ac1f537b9bf3278fa7439ddc12c82

      SHA512

      7f498f8d4e9655fdc398c11f5eeca1c14d383875c8ecedbe87f8ac8b6c0034ade31ef3b855f9d4dd393f89804c8e440919a2ed76b05efae9452f6cee898fc9e7

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      ba6a1e5da1e8dffa9ce0e17aa5ef1acc

      SHA1

      562e17a3b8ac1d793d2181371d7c93b1ca3505ee

      SHA256

      a9941174e6ef9377f35fc59067a11b68347774d10320e4fd98a4232b626b2cf7

      SHA512

      950bba1578613b460c03d404a4b6beeef24df413faa910dda6fbec4805ead55b66d0ab2d1742e1bb861a61e3c36c087321eaa29fc113a7e1a3ccb2cab8462c78

    • memory/400-145-0x00000000708A0000-0x0000000070BF4000-memory.dmp

      Filesize

      3.3MB

    • memory/400-144-0x0000000070720000-0x000000007076C000-memory.dmp

      Filesize

      304KB

    • memory/1388-63-0x0000000070720000-0x000000007076C000-memory.dmp

      Filesize

      304KB

    • memory/1388-62-0x0000000006220000-0x0000000006574000-memory.dmp

      Filesize

      3.3MB

    • memory/1388-76-0x0000000007C00000-0x0000000007C14000-memory.dmp

      Filesize

      80KB

    • memory/1388-75-0x0000000007BB0000-0x0000000007BC1000-memory.dmp

      Filesize

      68KB

    • memory/1388-74-0x00000000078A0000-0x0000000007943000-memory.dmp

      Filesize

      652KB

    • memory/1388-64-0x00000000708C0000-0x0000000070C14000-memory.dmp

      Filesize

      3.3MB

    • memory/1592-1-0x00000000047E0000-0x0000000004BDB000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-127-0x0000000006480000-0x0000000006D6B000-memory.dmp

      Filesize

      8.9MB

    • memory/1592-2-0x0000000006480000-0x0000000006D6B000-memory.dmp

      Filesize

      8.9MB

    • memory/1592-3-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/1592-77-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/1592-126-0x00000000047E0000-0x0000000004BDB000-memory.dmp

      Filesize

      4.0MB

    • memory/2108-103-0x00000000058E0000-0x0000000005C34000-memory.dmp

      Filesize

      3.3MB

    • memory/2108-115-0x0000000070EA0000-0x00000000711F4000-memory.dmp

      Filesize

      3.3MB

    • memory/2108-114-0x0000000070720000-0x000000007076C000-memory.dmp

      Filesize

      304KB

    • memory/2780-235-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-212-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-223-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-241-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-238-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-229-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-231-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-246-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-159-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-244-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-226-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2780-220-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2920-157-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/2920-125-0x0000000000400000-0x000000000441C000-memory.dmp

      Filesize

      64.1MB

    • memory/3172-200-0x00000000707C0000-0x0000000070B14000-memory.dmp

      Filesize

      3.3MB

    • memory/3172-199-0x0000000070640000-0x000000007068C000-memory.dmp

      Filesize

      304KB

    • memory/3172-196-0x0000000006210000-0x0000000006564000-memory.dmp

      Filesize

      3.3MB

    • memory/3732-91-0x0000000070720000-0x000000007076C000-memory.dmp

      Filesize

      304KB

    • memory/3732-92-0x00000000708A0000-0x0000000070BF4000-memory.dmp

      Filesize

      3.3MB

    • memory/3752-29-0x0000000070720000-0x000000007076C000-memory.dmp

      Filesize

      304KB

    • memory/3752-22-0x0000000006410000-0x000000000642E000-memory.dmp

      Filesize

      120KB

    • memory/3752-48-0x0000000007B80000-0x0000000007B88000-memory.dmp

      Filesize

      32KB

    • memory/3752-47-0x0000000007B90000-0x0000000007BAA000-memory.dmp

      Filesize

      104KB

    • memory/3752-46-0x0000000007B40000-0x0000000007B54000-memory.dmp

      Filesize

      80KB

    • memory/3752-45-0x0000000007B20000-0x0000000007B2E000-memory.dmp

      Filesize

      56KB

    • memory/3752-44-0x0000000007AE0000-0x0000000007AF1000-memory.dmp

      Filesize

      68KB

    • memory/3752-43-0x0000000007BE0000-0x0000000007C76000-memory.dmp

      Filesize

      600KB

    • memory/3752-42-0x0000000007AD0000-0x0000000007ADA000-memory.dmp

      Filesize

      40KB

    • memory/3752-41-0x00000000079E0000-0x0000000007A83000-memory.dmp

      Filesize

      652KB

    • memory/3752-40-0x00000000079C0000-0x00000000079DE000-memory.dmp

      Filesize

      120KB

    • memory/3752-4-0x0000000004E50000-0x0000000004E86000-memory.dmp

      Filesize

      216KB

    • memory/3752-28-0x0000000007980000-0x00000000079B2000-memory.dmp

      Filesize

      200KB

    • memory/3752-5-0x0000000074880000-0x0000000075030000-memory.dmp

      Filesize

      7.7MB

    • memory/3752-6-0x0000000004F40000-0x0000000004F50000-memory.dmp

      Filesize

      64KB

    • memory/3752-7-0x0000000004F40000-0x0000000004F50000-memory.dmp

      Filesize

      64KB

    • memory/3752-8-0x0000000005580000-0x0000000005BA8000-memory.dmp

      Filesize

      6.2MB

    • memory/3752-9-0x0000000005320000-0x0000000005342000-memory.dmp

      Filesize

      136KB

    • memory/3752-10-0x0000000005CA0000-0x0000000005D06000-memory.dmp

      Filesize

      408KB

    • memory/3752-30-0x00000000708A0000-0x0000000070BF4000-memory.dmp

      Filesize

      3.3MB

    • memory/3752-27-0x00000000077C0000-0x00000000077DA000-memory.dmp

      Filesize

      104KB

    • memory/3752-26-0x0000000007E20000-0x000000000849A000-memory.dmp

      Filesize

      6.5MB

    • memory/3752-25-0x0000000007520000-0x0000000007596000-memory.dmp

      Filesize

      472KB

    • memory/3752-24-0x0000000006950000-0x0000000006994000-memory.dmp

      Filesize

      272KB

    • memory/3752-23-0x0000000006440000-0x000000000648C000-memory.dmp

      Filesize

      304KB

    • memory/3752-51-0x0000000074880000-0x0000000075030000-memory.dmp

      Filesize

      7.7MB

    • memory/3752-21-0x0000000005E30000-0x0000000006184000-memory.dmp

      Filesize

      3.3MB

    • memory/3752-11-0x0000000005DC0000-0x0000000005E26000-memory.dmp

      Filesize

      408KB

    • memory/4556-185-0x00000000067A0000-0x00000000067B4000-memory.dmp

      Filesize

      80KB

    • memory/4556-184-0x0000000006760000-0x0000000006771000-memory.dmp

      Filesize

      68KB

    • memory/4556-183-0x0000000007BD0000-0x0000000007C73000-memory.dmp

      Filesize

      652KB

    • memory/4556-173-0x0000000070DD0000-0x0000000071124000-memory.dmp

      Filesize

      3.3MB

    • memory/4556-172-0x0000000070640000-0x000000007068C000-memory.dmp

      Filesize

      304KB

    • memory/4556-171-0x0000000006B00000-0x0000000006B4C000-memory.dmp

      Filesize

      304KB

    • memory/4556-165-0x00000000062D0000-0x0000000006624000-memory.dmp

      Filesize

      3.3MB