Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 21:32

General

  • Target

    7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0.exe

  • Size

    4.2MB

  • MD5

    4c86430e2a35691b0b38cce6cde9255d

  • SHA1

    bc6c21527c29c084b11c1088d80d51396f5eb8a8

  • SHA256

    7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0

  • SHA512

    cdad7e37bd3860e0a5a45f738950f831eb4a2376f3dfce979b67887f6d45321030a2a4b327f56d123434039bcbd018a1561823ce0423e4b96deba48823d38834

  • SSDEEP

    98304:SB6TE4JDSTIitXqfSjBwF+v4rSSNjcdSqGUwT7RQU7O+:PTFmTI8qKjKFA4r+dAh7RQUn

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 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\7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0.exe
    "C:\Users\Admin\AppData\Local\Temp\7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:448
    • C:\Users\Admin\AppData\Local\Temp\7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0.exe
      "C:\Users\Admin\AppData\Local\Temp\7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0.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:4432
      • 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:4464
      • 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:60
        • 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:3352
      • 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:3192
      • 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:3432
      • 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:3092
        • 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:376
        • 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:2488
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4652
          • 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:412
          • 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:3228
          • 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:1808
          • 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:224

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Impair Defenses

    1
    T1562

    Disable or Modify System Firewall

    1
    T1562.004

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sn0fpnr3.l11.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

      2d91e5f5f46d302f1339cd9ff08407d8

      SHA1

      a3bbde1ea28b3661fe8a3a2f637743f15e95becd

      SHA256

      df0a601c4674132e6a7b1694f1655f3bc06e5c9ec4edad83645ac40db1bd18bd

      SHA512

      ead16504682c3f31da540e21cbb779d5107f344bdb8bfb38be381e5e4c8642cc7098b44e43631a9f1cbfec2312719090db5c200e97f06de4613d80016faaaa2b

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

      19KB

      MD5

      8e3763a6f4a69b692b64ef13eae1cf37

      SHA1

      6d4d1437968c55027bf3d83d2c53ef9240ea65dc

      SHA256

      97a7eefab05cc71c11dc2b511fe902b516c47fff8013d55819d19d194a849458

      SHA512

      8ae66b8b29b035cf8e7966497198da7b3eed74dbb8a1e91f3dece9cf1c7c861bd32cc929654391306444751a3b9e3d3889aa936e1f9ecc17864a7e1f911d26c7

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

      19KB

      MD5

      8b33c3f0acd8a26d206ba588401afe55

      SHA1

      3693593c49e62d9823091ce0bd69bc0280e9c808

      SHA256

      e7bd5db33b8beed9cd9347ba250d5c2e0c37b5025e895d14782a3c77883db564

      SHA512

      fb083399cf829d0eb7b2ff386d2e4af4340eefac99b57dece1f9bd80732118e5140e9ffb6948c93d2fe7e0b3fc1855af5b2dd5551d3fff2d3c8d997f8f00101b

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

      19KB

      MD5

      522e03ea5301b240778cb42afbf813e9

      SHA1

      09de097a0fe168a04afcce41b42fb2cc97d082c9

      SHA256

      94142bd7f61f6fb4ca2dc8157377c26c4cd183b337f190a805cfef0356ef1d95

      SHA512

      8e72340e69f9f584d7767c97c1c71ad6e97a5f005132667fc79bee3107af393c8d1343e2dfd8d1a7dba094182aec023f7335415677254f098c2bd87f3bec1c64

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

      19KB

      MD5

      fed90fbbd63b93172221d7ab667812f3

      SHA1

      f631f1041e9f738fcb7498c5df8a908a0839e50a

      SHA256

      33a4cc1b926de6a4314d3fa1daf5b8e003f9d7ed8e555231f651fd8448578b4b

      SHA512

      b9b7e7dba6e1c6d832dc141fa8a53052c3c0b1186663b487f31783edcd1ae9a385fa4c4cc097395372b90bf45cbd55300f546201e2345141f0d2b492cbe3c2c3

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      4c86430e2a35691b0b38cce6cde9255d

      SHA1

      bc6c21527c29c084b11c1088d80d51396f5eb8a8

      SHA256

      7f54c76d79940af03f00b3b9b537536ebd74d1f57b7c5da45f9a2ec0b6b3bea0

      SHA512

      cdad7e37bd3860e0a5a45f738950f831eb4a2376f3dfce979b67887f6d45321030a2a4b327f56d123434039bcbd018a1561823ce0423e4b96deba48823d38834

    • memory/448-46-0x0000000007340000-0x0000000007351000-memory.dmp
      Filesize

      68KB

    • memory/448-44-0x0000000007320000-0x000000000732A000-memory.dmp
      Filesize

      40KB

    • memory/448-10-0x0000000004D90000-0x0000000004DF6000-memory.dmp
      Filesize

      408KB

    • memory/448-18-0x00000000055B0000-0x0000000005904000-memory.dmp
      Filesize

      3.3MB

    • memory/448-22-0x0000000005C40000-0x0000000005C5E000-memory.dmp
      Filesize

      120KB

    • memory/448-23-0x0000000005D00000-0x0000000005D4C000-memory.dmp
      Filesize

      304KB

    • memory/448-24-0x0000000006070000-0x00000000060B4000-memory.dmp
      Filesize

      272KB

    • memory/448-25-0x0000000006F80000-0x0000000006FF6000-memory.dmp
      Filesize

      472KB

    • memory/448-27-0x0000000007020000-0x000000000703A000-memory.dmp
      Filesize

      104KB

    • memory/448-26-0x0000000007680000-0x0000000007CFA000-memory.dmp
      Filesize

      6.5MB

    • memory/448-42-0x0000000004940000-0x0000000004950000-memory.dmp
      Filesize

      64KB

    • memory/448-41-0x0000000007210000-0x000000000722E000-memory.dmp
      Filesize

      120KB

    • memory/448-43-0x0000000007230000-0x00000000072D3000-memory.dmp
      Filesize

      652KB

    • memory/448-31-0x00000000709C0000-0x0000000070D14000-memory.dmp
      Filesize

      3.3MB

    • memory/448-30-0x00000000705D0000-0x000000007061C000-memory.dmp
      Filesize

      304KB

    • memory/448-29-0x00000000071D0000-0x0000000007202000-memory.dmp
      Filesize

      200KB

    • memory/448-28-0x000000007FA80000-0x000000007FA90000-memory.dmp
      Filesize

      64KB

    • memory/448-7-0x0000000004940000-0x0000000004950000-memory.dmp
      Filesize

      64KB

    • memory/448-45-0x00000000073E0000-0x0000000007476000-memory.dmp
      Filesize

      600KB

    • memory/448-9-0x0000000004CF0000-0x0000000004D12000-memory.dmp
      Filesize

      136KB

    • memory/448-47-0x0000000007380000-0x000000000738E000-memory.dmp
      Filesize

      56KB

    • memory/448-48-0x0000000007390000-0x00000000073A4000-memory.dmp
      Filesize

      80KB

    • memory/448-49-0x0000000007480000-0x000000000749A000-memory.dmp
      Filesize

      104KB

    • memory/448-50-0x00000000073D0000-0x00000000073D8000-memory.dmp
      Filesize

      32KB

    • memory/448-53-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/448-11-0x0000000004E70000-0x0000000004ED6000-memory.dmp
      Filesize

      408KB

    • memory/448-8-0x0000000004940000-0x0000000004950000-memory.dmp
      Filesize

      64KB

    • memory/448-5-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/448-6-0x0000000004F80000-0x00000000055A8000-memory.dmp
      Filesize

      6.2MB

    • memory/448-4-0x0000000002610000-0x0000000002646000-memory.dmp
      Filesize

      216KB

    • memory/1908-59-0x0000000003E60000-0x000000000474B000-memory.dmp
      Filesize

      8.9MB

    • memory/1908-3-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/1908-2-0x0000000003E60000-0x000000000474B000-memory.dmp
      Filesize

      8.9MB

    • memory/1908-57-0x0000000003A60000-0x0000000003E59000-memory.dmp
      Filesize

      4.0MB

    • memory/1908-73-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/1908-1-0x0000000003A60000-0x0000000003E59000-memory.dmp
      Filesize

      4.0MB

    • memory/3092-281-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-263-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-261-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-259-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-257-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-265-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-267-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-269-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-271-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-273-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-275-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-277-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3092-279-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/3192-122-0x00000000033E0000-0x00000000033F0000-memory.dmp
      Filesize

      64KB

    • memory/3192-96-0x00000000033E0000-0x00000000033F0000-memory.dmp
      Filesize

      64KB

    • memory/3192-112-0x0000000070D50000-0x00000000710A4000-memory.dmp
      Filesize

      3.3MB

    • memory/3192-111-0x000000007EFD0000-0x000000007EFE0000-memory.dmp
      Filesize

      64KB

    • memory/3192-110-0x00000000705D0000-0x000000007061C000-memory.dmp
      Filesize

      304KB

    • memory/3192-95-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/3192-124-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/3192-97-0x00000000033E0000-0x00000000033F0000-memory.dmp
      Filesize

      64KB

    • memory/3192-98-0x0000000006300000-0x0000000006654000-memory.dmp
      Filesize

      3.3MB

    • memory/3432-125-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/3432-126-0x00000000034C0000-0x00000000034D0000-memory.dmp
      Filesize

      64KB

    • memory/4432-58-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/4432-156-0x0000000000400000-0x0000000001DF9000-memory.dmp
      Filesize

      26.0MB

    • memory/4432-55-0x0000000003AB0000-0x0000000003EAF000-memory.dmp
      Filesize

      4.0MB

    • memory/4432-56-0x0000000003EB0000-0x000000000479B000-memory.dmp
      Filesize

      8.9MB

    • memory/4432-109-0x0000000003AB0000-0x0000000003EAF000-memory.dmp
      Filesize

      4.0MB

    • memory/4464-89-0x00000000076D0000-0x00000000076E1000-memory.dmp
      Filesize

      68KB

    • memory/4464-76-0x0000000070770000-0x0000000070AC4000-memory.dmp
      Filesize

      3.3MB

    • memory/4464-86-0x00000000073B0000-0x0000000007453000-memory.dmp
      Filesize

      652KB

    • memory/4464-88-0x0000000004DA0000-0x0000000004DB0000-memory.dmp
      Filesize

      64KB

    • memory/4464-87-0x0000000004DA0000-0x0000000004DB0000-memory.dmp
      Filesize

      64KB

    • memory/4464-75-0x00000000705D0000-0x000000007061C000-memory.dmp
      Filesize

      304KB

    • memory/4464-72-0x0000000005D00000-0x0000000006054000-memory.dmp
      Filesize

      3.3MB

    • memory/4464-71-0x0000000004DA0000-0x0000000004DB0000-memory.dmp
      Filesize

      64KB

    • memory/4464-61-0x0000000004DA0000-0x0000000004DB0000-memory.dmp
      Filesize

      64KB

    • memory/4464-60-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB

    • memory/4464-74-0x000000007EF90000-0x000000007EFA0000-memory.dmp
      Filesize

      64KB

    • memory/4464-90-0x0000000007720000-0x0000000007734000-memory.dmp
      Filesize

      80KB

    • memory/4464-93-0x0000000074730000-0x0000000074EE0000-memory.dmp
      Filesize

      7.7MB