Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 04:06

General

  • Target

    05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe

  • Size

    4.1MB

  • MD5

    838f1358940dbba9f4505d0c24bca4c7

  • SHA1

    c49efbe9a26a8b0865c5bad29a84794e5e4705f2

  • SHA256

    05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1

  • SHA512

    fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8

  • SSDEEP

    98304:eQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nz:eQAQcDPYxuCJe7X5ghfz

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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
    "C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:116
    • 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:960
    • C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
      "C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.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:1580
      • 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:2380
      • 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:4580
        • 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:3328
      • 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:1080
      • 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:1368
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:396
        • 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:4992
        • 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:4764
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3564
          • 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:3632
          • 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:3184
          • 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:4404
          • 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:3776

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lfbgucph.sxb.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

      cbaff6a56c8e1b96ff0ee2e4a04cd600

      SHA1

      f570d05a7030cb6a3345bb60843d4478e2dcb9b7

      SHA256

      8b6cfb8edce247515a4de15ea5c97488e2d6bd3af8c2068c87f60a5036ed143a

      SHA512

      60a545f37fe21a40c1605dfa935f6b2d8cd93755c649d17dcfbf3b03182a6854e7a94aeca41459f7ba078892a181d4012657f1db081ae669dfd704975f8c60c9

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

      Filesize

      19KB

      MD5

      10eaf95f52be594dc3c29dc925c62c76

      SHA1

      546fa52febea649424831d61a7dc1f741a8d0dd9

      SHA256

      706f824cfcfbed32eb6b820ffd6c2e900c1f41f9a606cb020f683f58f6875d48

      SHA512

      8517cb285b7ceb25c601e702438cbe66a4e4242ebc51e6e2581525dbffa4f2e3963b8de2432b82484cdd2a5e3b9307ee03e95298e421fedfcaaefbec95b5a6bb

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

      Filesize

      19KB

      MD5

      bacb29394773b19e9ede0279ea103e42

      SHA1

      96db102b35952de53d64420b2a8edd1f583cc316

      SHA256

      cd6a5b33549225bb05d15f34a24b52c2e2f20616e4a2d203f52cc2ed142ae75c

      SHA512

      1347fd97cca234b22d29523470914117964af9b9d4fcbb8ddd2092a5110b9f63e00792804687d42fe60e34512cd9802507a7aeea5428f0cbf4698fef41871645

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

      Filesize

      19KB

      MD5

      aa2ff378ebc995d94a6ec52e1c79fc82

      SHA1

      03fddd44052510b44daeb3c2eaed09e68bc73aeb

      SHA256

      f379b528457f315fff417277870d6395f4eb57a4fcec90f486c71b0402618d0e

      SHA512

      7cbb632f62e6c0ccf4246e80af979658e3673114525662005520337a35fa12717b4e93f841a0268372b0275ebf167cc210146942246a89d9a0acbfbadec2f7a3

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

      Filesize

      19KB

      MD5

      2fa45931260359b67c9b122e776b2a2b

      SHA1

      fbdbc71851e8abe53a38be08ba606dff90bfd565

      SHA256

      c1e70a5c2359f943b8fc9fb9d67e2a7f49be38c1d9696016696820ef89139709

      SHA512

      0a863c4e33bd88039562bd25cb8e13e8df3633693a592c38d33584b584eb427e99c4f639ba6f639baebc29be4a8aec807120e41ddd87c443d0da9539a0fea728

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      838f1358940dbba9f4505d0c24bca4c7

      SHA1

      c49efbe9a26a8b0865c5bad29a84794e5e4705f2

      SHA256

      05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1

      SHA512

      fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8

    • memory/116-92-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/116-156-0x0000000004860000-0x000000000514B000-memory.dmp

      Filesize

      8.9MB

    • memory/116-93-0x0000000004460000-0x000000000485F000-memory.dmp

      Filesize

      4.0MB

    • memory/116-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/116-1-0x0000000004460000-0x000000000485F000-memory.dmp

      Filesize

      4.0MB

    • memory/116-185-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/116-2-0x0000000004860000-0x000000000514B000-memory.dmp

      Filesize

      8.9MB

    • memory/396-230-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-214-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-216-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-218-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-220-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-222-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-224-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-226-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-228-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-232-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-234-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-236-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/396-238-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/960-30-0x0000000074E20000-0x00000000755D0000-memory.dmp

      Filesize

      7.7MB

    • memory/960-25-0x0000000007880000-0x00000000078F6000-memory.dmp

      Filesize

      472KB

    • memory/960-49-0x0000000007EF0000-0x0000000007F0A000-memory.dmp

      Filesize

      104KB

    • memory/960-50-0x0000000007EE0000-0x0000000007EE8000-memory.dmp

      Filesize

      32KB

    • memory/960-53-0x0000000074E20000-0x00000000755D0000-memory.dmp

      Filesize

      7.7MB

    • memory/960-4-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

      Filesize

      4KB

    • memory/960-5-0x0000000003160000-0x0000000003196000-memory.dmp

      Filesize

      216KB

    • memory/960-7-0x0000000074E20000-0x00000000755D0000-memory.dmp

      Filesize

      7.7MB

    • memory/960-6-0x00000000059B0000-0x0000000005FD8000-memory.dmp

      Filesize

      6.2MB

    • memory/960-8-0x0000000074E20000-0x00000000755D0000-memory.dmp

      Filesize

      7.7MB

    • memory/960-9-0x0000000005790000-0x00000000057B2000-memory.dmp

      Filesize

      136KB

    • memory/960-47-0x0000000007E80000-0x0000000007E8E000-memory.dmp

      Filesize

      56KB

    • memory/960-46-0x0000000007E40000-0x0000000007E51000-memory.dmp

      Filesize

      68KB

    • memory/960-45-0x0000000007F40000-0x0000000007FD6000-memory.dmp

      Filesize

      600KB

    • memory/960-44-0x0000000007E30000-0x0000000007E3A000-memory.dmp

      Filesize

      40KB

    • memory/960-10-0x0000000006090000-0x00000000060F6000-memory.dmp

      Filesize

      408KB

    • memory/960-11-0x0000000006100000-0x0000000006166000-memory.dmp

      Filesize

      408KB

    • memory/960-43-0x0000000074E20000-0x00000000755D0000-memory.dmp

      Filesize

      7.7MB

    • memory/960-21-0x0000000006170000-0x00000000064C4000-memory.dmp

      Filesize

      3.3MB

    • memory/960-22-0x0000000006750000-0x000000000676E000-memory.dmp

      Filesize

      120KB

    • memory/960-42-0x0000000007D40000-0x0000000007DE3000-memory.dmp

      Filesize

      652KB

    • memory/960-23-0x00000000067B0000-0x00000000067FC000-memory.dmp

      Filesize

      304KB

    • memory/960-41-0x0000000007D20000-0x0000000007D3E000-memory.dmp

      Filesize

      120KB

    • memory/960-24-0x0000000006CA0000-0x0000000006CE4000-memory.dmp

      Filesize

      272KB

    • memory/960-48-0x0000000007EA0000-0x0000000007EB4000-memory.dmp

      Filesize

      80KB

    • memory/960-31-0x0000000070E40000-0x0000000071194000-memory.dmp

      Filesize

      3.3MB

    • memory/960-26-0x0000000008180000-0x00000000087FA000-memory.dmp

      Filesize

      6.5MB

    • memory/960-28-0x0000000007CE0000-0x0000000007D12000-memory.dmp

      Filesize

      200KB

    • memory/960-27-0x0000000007B20000-0x0000000007B3A000-memory.dmp

      Filesize

      104KB

    • memory/960-29-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/1080-94-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/1080-95-0x0000000070E40000-0x0000000071194000-memory.dmp

      Filesize

      3.3MB

    • memory/1368-117-0x0000000071440000-0x0000000071794000-memory.dmp

      Filesize

      3.3MB

    • memory/1368-116-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/1580-131-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/2380-64-0x0000000005C00000-0x0000000005F54000-memory.dmp

      Filesize

      3.3MB

    • memory/2380-65-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/2380-66-0x0000000071440000-0x0000000071794000-memory.dmp

      Filesize

      3.3MB

    • memory/2380-76-0x0000000007430000-0x00000000074D3000-memory.dmp

      Filesize

      652KB

    • memory/2380-77-0x0000000007740000-0x0000000007751000-memory.dmp

      Filesize

      68KB

    • memory/2380-78-0x0000000007790000-0x00000000077A4000-memory.dmp

      Filesize

      80KB

    • memory/3184-195-0x00000000059C0000-0x0000000005D14000-memory.dmp

      Filesize

      3.3MB

    • memory/3184-198-0x0000000071390000-0x00000000716E4000-memory.dmp

      Filesize

      3.3MB

    • memory/3184-197-0x0000000070BE0000-0x0000000070C2C000-memory.dmp

      Filesize

      304KB

    • memory/3632-157-0x0000000006210000-0x0000000006564000-memory.dmp

      Filesize

      3.3MB

    • memory/3632-168-0x0000000006E30000-0x0000000006E7C000-memory.dmp

      Filesize

      304KB

    • memory/3632-180-0x0000000007B50000-0x0000000007BF3000-memory.dmp

      Filesize

      652KB

    • memory/3632-169-0x0000000070BE0000-0x0000000070C2C000-memory.dmp

      Filesize

      304KB

    • memory/3632-182-0x00000000066D0000-0x00000000066E4000-memory.dmp

      Filesize

      80KB

    • memory/3632-181-0x0000000007E30000-0x0000000007E41000-memory.dmp

      Filesize

      68KB

    • memory/3632-170-0x0000000071370000-0x00000000716C4000-memory.dmp

      Filesize

      3.3MB

    • memory/4992-144-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/4992-145-0x0000000071440000-0x0000000071794000-memory.dmp

      Filesize

      3.3MB