Analysis

  • max time kernel
    87s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 19:25

General

  • Target

    b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe

  • Size

    4.2MB

  • MD5

    1b21502f0167e0dc81c2fcf36db2f3b9

  • SHA1

    ba2f6c735edd994c897d3446253b991223f38a9f

  • SHA256

    b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da

  • SHA512

    e67def3b4817154bd36a725c175b8bee9c7189904491e6bcb146055693bd9328a7ac67b364e13aa0078e9b175c3279d762749c962a1804becd3953a5d05a19b5

  • SSDEEP

    98304:Tz8muvG4/7oo98xMphVIqHAQJ7eNfIWzS5gC960Xfu6ti9vBy294:TzvuvT/7/zVIWAQdeNfIWzX0W6tA42m

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 14 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 46 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\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe
    "C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3376
    • C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.exe
      "C:\Users\Admin\AppData\Local\Temp\b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da.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:940
      • 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:3976
      • 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:3788
        • 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:4080
      • 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:4316
      • 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:4536
      • 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:1708
        • 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:224
        • 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:4952
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3176
          • 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:2824
          • 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:4476
          • 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:4172
          • 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:3216

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2wafcrp4.nix.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

            c0be93300e10a14c92ebade0ae236cce

            SHA1

            90f2c1dfee991cbd685770c41eef009de2001df3

            SHA256

            3eea2b860464f6687a4831ab2ccedb4a18ffc541090beb9f7e3ee314c78cb073

            SHA512

            76c581ce143b2efc58e1310d962171b354ee336551bf24886180dec53677987cc740ab819de2e2c89b68c7bd70e36e5bd048db74e4d41d3576019c7298724079

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

            Filesize

            19KB

            MD5

            e13a13d2ec82433354edd34fe6b8f419

            SHA1

            30d729f09f1606dd9e5f6525b127e3492783e505

            SHA256

            392caa89af2a2520021a064d14eade80f2816ddfe97ff484889ba026473ecfb6

            SHA512

            7cefaed62e597507aba95002cd08ba68714bfd59e7e69916dade8fa964f83fd15b2e0dd6b2b1da157102b57f627d671116d20d2d86eab4af281fefa377c3bb04

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

            Filesize

            19KB

            MD5

            268a53ccc7c07dbcf4515c34fe8bd51f

            SHA1

            8607761c31d626d7af5660bd094f184bbab1baf2

            SHA256

            911c9c7fb870369c1ee8d9e7dc56c90a922efe226154c171459bcc250ec3c550

            SHA512

            f9ce7dd2e78dc72e08eba1a9f925b477b099da0b4c2de75a56f04bc9fbca1e9fc326bf9df10725bbd85a9171aafca38c6d9e14c57c3fac29c7710fabbea0efcf

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

            Filesize

            19KB

            MD5

            bf5c9e2e55b6f9012c2d36d3ed0b41c8

            SHA1

            035b66b3f545a958cbab10fcfd7f6e14d68aff41

            SHA256

            24181d99b5c14314743628367879c48034ae2d43a25b4b00b6ac9a87560b85d0

            SHA512

            19ca08c255555dc143cf0577795188c51effbaffc75801118a8627b931136762601df4a02d3bfba2903ca5cb36541a67d332491ef8ee0b946681bc0dfb6bf8ac

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

            Filesize

            19KB

            MD5

            40b13eef598cbccd85114246d3c080cf

            SHA1

            38cbb3dba70e4792824ea2b5a6a7040842cbf9ec

            SHA256

            22ecd9fa8cbff2fee9caeea4e9430bd21c0d2e1ef6ad13bb7fec4158450b3610

            SHA512

            19ebac3710889d5d915bea11bc8ead17d0a421183c828700c40f552a02e9339d4b0fe3817955d59e3c64cbfd3209668339bcb4949ef0ebae757bf2cbc1b6cb00

          • C:\Windows\rss\csrss.exe

            Filesize

            4.2MB

            MD5

            1b21502f0167e0dc81c2fcf36db2f3b9

            SHA1

            ba2f6c735edd994c897d3446253b991223f38a9f

            SHA256

            b6eb61c67f1a2cf912a3b22809ecd191120da4c73489f06b98254960c0de84da

            SHA512

            e67def3b4817154bd36a725c175b8bee9c7189904491e6bcb146055693bd9328a7ac67b364e13aa0078e9b175c3279d762749c962a1804becd3953a5d05a19b5

          • memory/940-124-0x0000000004D00000-0x0000000005106000-memory.dmp

            Filesize

            4.0MB

          • memory/940-120-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/940-123-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/940-155-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/940-58-0x0000000004D00000-0x0000000005106000-memory.dmp

            Filesize

            4.0MB

          • memory/940-59-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/940-88-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/1708-159-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/1708-261-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/1708-240-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/1708-189-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/1708-158-0x0000000005100000-0x0000000005500000-memory.dmp

            Filesize

            4.0MB

          • memory/2316-1-0x0000000004D20000-0x0000000005127000-memory.dmp

            Filesize

            4.0MB

          • memory/2316-3-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/2316-2-0x0000000005130000-0x0000000005A1B000-memory.dmp

            Filesize

            8.9MB

          • memory/2316-29-0x0000000004D20000-0x0000000005127000-memory.dmp

            Filesize

            4.0MB

          • memory/2316-24-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/2316-52-0x0000000005130000-0x0000000005A1B000-memory.dmp

            Filesize

            8.9MB

          • memory/2316-57-0x0000000000400000-0x000000000310E000-memory.dmp

            Filesize

            45.1MB

          • memory/3376-28-0x00000000072B0000-0x00000000072CA000-memory.dmp

            Filesize

            104KB

          • memory/3376-7-0x0000000004FB0000-0x00000000055D8000-memory.dmp

            Filesize

            6.2MB

          • memory/3376-48-0x0000000007610000-0x000000000761E000-memory.dmp

            Filesize

            56KB

          • memory/3376-49-0x0000000007630000-0x0000000007644000-memory.dmp

            Filesize

            80KB

          • memory/3376-50-0x0000000007670000-0x000000000768A000-memory.dmp

            Filesize

            104KB

          • memory/3376-51-0x0000000007660000-0x0000000007668000-memory.dmp

            Filesize

            32KB

          • memory/3376-46-0x00000000076D0000-0x0000000007766000-memory.dmp

            Filesize

            600KB

          • memory/3376-55-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/3376-45-0x00000000075C0000-0x00000000075CA000-memory.dmp

            Filesize

            40KB

          • memory/3376-44-0x00000000074B0000-0x0000000007553000-memory.dmp

            Filesize

            652KB

          • memory/3376-43-0x0000000007450000-0x000000000746E000-memory.dmp

            Filesize

            120KB

          • memory/3376-22-0x0000000005F70000-0x0000000005FBC000-memory.dmp

            Filesize

            304KB

          • memory/3376-25-0x00000000028E0000-0x00000000028F0000-memory.dmp

            Filesize

            64KB

          • memory/3376-21-0x0000000004BF0000-0x0000000004C0E000-memory.dmp

            Filesize

            120KB

          • memory/3376-20-0x00000000059C0000-0x0000000005D14000-memory.dmp

            Filesize

            3.3MB

          • memory/3376-26-0x0000000007210000-0x0000000007286000-memory.dmp

            Filesize

            472KB

          • memory/3376-27-0x0000000007910000-0x0000000007F8A000-memory.dmp

            Filesize

            6.5MB

          • memory/3376-31-0x000000007FB40000-0x000000007FB50000-memory.dmp

            Filesize

            64KB

          • memory/3376-10-0x00000000057E0000-0x0000000005846000-memory.dmp

            Filesize

            408KB

          • memory/3376-9-0x00000000056C0000-0x0000000005726000-memory.dmp

            Filesize

            408KB

          • memory/3376-30-0x0000000007470000-0x00000000074A2000-memory.dmp

            Filesize

            200KB

          • memory/3376-8-0x0000000005620000-0x0000000005642000-memory.dmp

            Filesize

            136KB

          • memory/3376-33-0x0000000070A30000-0x0000000070D84000-memory.dmp

            Filesize

            3.3MB

          • memory/3376-4-0x0000000002860000-0x0000000002896000-memory.dmp

            Filesize

            216KB

          • memory/3376-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/3376-6-0x00000000028E0000-0x00000000028F0000-memory.dmp

            Filesize

            64KB

          • memory/3376-47-0x00000000075D0000-0x00000000075E1000-memory.dmp

            Filesize

            68KB

          • memory/3376-32-0x00000000708B0000-0x00000000708FC000-memory.dmp

            Filesize

            304KB

          • memory/3376-23-0x00000000064B0000-0x00000000064F4000-memory.dmp

            Filesize

            272KB

          • memory/3976-91-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/3976-86-0x00000000073C0000-0x00000000073D4000-memory.dmp

            Filesize

            80KB

          • memory/3976-85-0x0000000007370000-0x0000000007381000-memory.dmp

            Filesize

            68KB

          • memory/3976-84-0x0000000007070000-0x0000000007113000-memory.dmp

            Filesize

            652KB

          • memory/3976-74-0x0000000070A30000-0x0000000070D84000-memory.dmp

            Filesize

            3.3MB

          • memory/3976-73-0x00000000708B0000-0x00000000708FC000-memory.dmp

            Filesize

            304KB

          • memory/3976-72-0x0000000004A40000-0x0000000004A50000-memory.dmp

            Filesize

            64KB

          • memory/3976-71-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/3976-61-0x0000000004A40000-0x0000000004A50000-memory.dmp

            Filesize

            64KB

          • memory/3976-60-0x0000000004A40000-0x0000000004A50000-memory.dmp

            Filesize

            64KB

          • memory/4316-96-0x0000000005DB0000-0x0000000006104000-memory.dmp

            Filesize

            3.3MB

          • memory/4316-107-0x0000000005040000-0x0000000005050000-memory.dmp

            Filesize

            64KB

          • memory/4316-93-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/4316-94-0x0000000005040000-0x0000000005050000-memory.dmp

            Filesize

            64KB

          • memory/4316-95-0x0000000005040000-0x0000000005050000-memory.dmp

            Filesize

            64KB

          • memory/4316-108-0x00000000708B0000-0x00000000708FC000-memory.dmp

            Filesize

            304KB

          • memory/4316-109-0x0000000071030000-0x0000000071384000-memory.dmp

            Filesize

            3.3MB

          • memory/4316-122-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/4536-125-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB

          • memory/4536-135-0x0000000005390000-0x00000000056E4000-memory.dmp

            Filesize

            3.3MB

          • memory/4536-139-0x0000000071050000-0x00000000713A4000-memory.dmp

            Filesize

            3.3MB

          • memory/4536-137-0x0000000004610000-0x0000000004620000-memory.dmp

            Filesize

            64KB

          • memory/4536-138-0x00000000708B0000-0x00000000708FC000-memory.dmp

            Filesize

            304KB

          • memory/4536-150-0x0000000074A10000-0x00000000751C0000-memory.dmp

            Filesize

            7.7MB