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Analysis

  • max time kernel
    35s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2023, 04:31

General

  • Target

    4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe

  • Size

    4.2MB

  • MD5

    ae8b469776db2c1cb6761a351ba8315e

  • SHA1

    df41fb7099ece9fd6acee8da00b7b54acef378d1

  • SHA256

    4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

  • SHA512

    25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858

  • SSDEEP

    98304:jPisFK/8uM75gZt+y9kRZ+r2YOUQ1QQTOc8FgNKYKuIT:WFW6PkRZ+izUpQqmXLIT

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 10 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 1 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 28 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\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
    "C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5024
    • C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
      "C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.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:2768
      • 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:640
      • 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⤵
          PID:3308
          • 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:2044
        • 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:1156
        • 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:3080
        • C:\Windows\rss\csrss.exe
          C:\Windows\rss\csrss.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1260
          • 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:3508
          • 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:8
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /delete /tn ScheduledUpdate /f
            4⤵
              PID:1232
            • 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:1904
            • 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:5020
      • C:\Windows\System32\Conhost.exe
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3308

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ks4oaios.vdz.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • 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

        358e6bc95dc8cc4106f41ff739003989

        SHA1

        7c100654f1fb74a67337d30dbb723cc0ea29c01c

        SHA256

        8b204408183df4e1ea6dfe0e8e79e49a89226bd78860f8f4ce00dc080b33a181

        SHA512

        9d079fd7d9772c206260c0c84ad8cb84906d717d0fd4c984a438b7774c6ca2fda3062795ddaf0b6d26070ff0283a51992d0a754fe837ccb8ec70fe980b91c6c0

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

        Filesize

        19KB

        MD5

        3557623b6668b49f4db6527304474abe

        SHA1

        10c938a3fcb34aa24c043a1214f658a3e4c7d6a5

        SHA256

        b0ba3717bf2484a3a2769f02605aba097b2da3246c12197cded128f65af571ef

        SHA512

        de62ddeb71b07a31cf421cda6c0808b7bc92960d0b4d581089bbb01b8422058fd0de2127d9c6fd7d35b7f3f133bb78b95189e366e05550643da07fa9eee9f144

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

        Filesize

        19KB

        MD5

        e6026aa2c7414cbc626af381ad1f585c

        SHA1

        4c02fd6f4914b03d566b40f75d6a6140a06375d9

        SHA256

        e886aa7a7281b4f5b4df7955dd03539ad569cc365800a629274db5fa06bc314c

        SHA512

        bd509d418c8cdadcd0dcfc4b2eccfecc36505ec6e85fa321534cec2b56c5bc8a83d05cd143d93033a3e8f5f6d7223ab0227121dd1568e7b3de579090d2363a4b

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

        Filesize

        19KB

        MD5

        01a95cc735fc092e9e8acd999d3f2534

        SHA1

        0bb291b8eb7d64ea427931c25e8d11b3e2cf2fd2

        SHA256

        254b492b6b0b358ee82d51128ee165271374f97e497d73457cce6badb8899615

        SHA512

        8915e623837b94d2934eab49c13136c9fea3f5441a93deced64ed4c81dc32368ac7e1b1405e5afdc4e5a0cfce81071031d822173eacddd424cea6442501cec87

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

        Filesize

        19KB

        MD5

        af493d7d66c89a3eb84e2efeae3fdf7f

        SHA1

        1935e1ef33b0da3a2cd9827e748b51184faf72fb

        SHA256

        df8269e4974cf1f1e50d9fc188d4bcc46daf9809de007f8da68375b3edb8519e

        SHA512

        a0ed5d0b09f24bd012052184576b1e2c05b3165b7de91959a66f86fe30b3c180f931837591ab10a8e20177d4500979d02079fbabedee799527d3563ed3da18b5

      • C:\Windows\rss\csrss.exe

        Filesize

        4.2MB

        MD5

        ae8b469776db2c1cb6761a351ba8315e

        SHA1

        df41fb7099ece9fd6acee8da00b7b54acef378d1

        SHA256

        4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

        SHA512

        25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858

      • C:\Windows\rss\csrss.exe

        Filesize

        4.2MB

        MD5

        ae8b469776db2c1cb6761a351ba8315e

        SHA1

        df41fb7099ece9fd6acee8da00b7b54acef378d1

        SHA256

        4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

        SHA512

        25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858

      • memory/640-62-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/640-88-0x0000000007D10000-0x0000000007D21000-memory.dmp

        Filesize

        68KB

      • memory/640-75-0x000000007FA30000-0x000000007FA40000-memory.dmp

        Filesize

        64KB

      • memory/640-64-0x0000000005200000-0x0000000005210000-memory.dmp

        Filesize

        64KB

      • memory/640-63-0x0000000005200000-0x0000000005210000-memory.dmp

        Filesize

        64KB

      • memory/640-74-0x0000000005200000-0x0000000005210000-memory.dmp

        Filesize

        64KB

      • memory/640-77-0x0000000070C50000-0x0000000070FA4000-memory.dmp

        Filesize

        3.3MB

      • memory/640-92-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/640-87-0x00000000079F0000-0x0000000007A93000-memory.dmp

        Filesize

        652KB

      • memory/640-89-0x0000000007D60000-0x0000000007D74000-memory.dmp

        Filesize

        80KB

      • memory/640-76-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

        Filesize

        304KB

      • memory/732-3-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/732-30-0x0000000002F30000-0x000000000381B000-memory.dmp

        Filesize

        8.9MB

      • memory/732-1-0x0000000002B30000-0x0000000002F29000-memory.dmp

        Filesize

        4.0MB

      • memory/732-122-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/732-32-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/732-25-0x0000000002B30000-0x0000000002F29000-memory.dmp

        Filesize

        4.0MB

      • memory/732-2-0x0000000002F30000-0x000000000381B000-memory.dmp

        Filesize

        8.9MB

      • memory/732-50-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/1156-111-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

        Filesize

        304KB

      • memory/1156-112-0x0000000070C70000-0x0000000070FC4000-memory.dmp

        Filesize

        3.3MB

      • memory/1156-95-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/1156-124-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/1156-107-0x0000000005D70000-0x00000000060C4000-memory.dmp

        Filesize

        3.3MB

      • memory/1156-96-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

        Filesize

        64KB

      • memory/1156-109-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

        Filesize

        64KB

      • memory/1156-110-0x000000007F4E0000-0x000000007F4F0000-memory.dmp

        Filesize

        64KB

      • memory/2768-93-0x0000000002C30000-0x000000000302C000-memory.dmp

        Filesize

        4.0MB

      • memory/2768-106-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2768-60-0x0000000002C30000-0x000000000302C000-memory.dmp

        Filesize

        4.0MB

      • memory/2768-61-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2768-139-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/2768-240-0x0000000000400000-0x0000000000D1B000-memory.dmp

        Filesize

        9.1MB

      • memory/3080-126-0x00000000022C0000-0x00000000022D0000-memory.dmp

        Filesize

        64KB

      • memory/3080-127-0x00000000022C0000-0x00000000022D0000-memory.dmp

        Filesize

        64KB

      • memory/3080-125-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/3080-137-0x0000000005540000-0x0000000005894000-memory.dmp

        Filesize

        3.3MB

      • memory/5024-28-0x0000000007520000-0x0000000007B9A000-memory.dmp

        Filesize

        6.5MB

      • memory/5024-58-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/5024-55-0x0000000007460000-0x0000000007468000-memory.dmp

        Filesize

        32KB

      • memory/5024-54-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

        Filesize

        104KB

      • memory/5024-53-0x0000000007420000-0x0000000007434000-memory.dmp

        Filesize

        80KB

      • memory/5024-52-0x0000000007410000-0x000000000741E000-memory.dmp

        Filesize

        56KB

      • memory/5024-51-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB

      • memory/5024-49-0x00000000073D0000-0x00000000073E1000-memory.dmp

        Filesize

        68KB

      • memory/5024-48-0x0000000007470000-0x0000000007506000-memory.dmp

        Filesize

        600KB

      • memory/5024-47-0x00000000073B0000-0x00000000073BA000-memory.dmp

        Filesize

        40KB

      • memory/5024-46-0x00000000072C0000-0x0000000007363000-memory.dmp

        Filesize

        652KB

      • memory/5024-45-0x0000000007260000-0x000000000727E000-memory.dmp

        Filesize

        120KB

      • memory/5024-35-0x0000000070C50000-0x0000000070FA4000-memory.dmp

        Filesize

        3.3MB

      • memory/5024-34-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

        Filesize

        304KB

      • memory/5024-33-0x000000007F100000-0x000000007F110000-memory.dmp

        Filesize

        64KB

      • memory/5024-31-0x0000000007280000-0x00000000072B2000-memory.dmp

        Filesize

        200KB

      • memory/5024-29-0x0000000006EC0000-0x0000000006EDA000-memory.dmp

        Filesize

        104KB

      • memory/5024-27-0x0000000006E20000-0x0000000006E96000-memory.dmp

        Filesize

        472KB

      • memory/5024-26-0x00000000028B0000-0x00000000028C0000-memory.dmp

        Filesize

        64KB

      • memory/5024-24-0x0000000006250000-0x0000000006294000-memory.dmp

        Filesize

        272KB

      • memory/5024-23-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

        Filesize

        304KB

      • memory/5024-22-0x0000000005D00000-0x0000000005D1E000-memory.dmp

        Filesize

        120KB

      • memory/5024-21-0x00000000057A0000-0x0000000005AF4000-memory.dmp

        Filesize

        3.3MB

      • memory/5024-11-0x0000000005570000-0x00000000055D6000-memory.dmp

        Filesize

        408KB

      • memory/5024-10-0x0000000004EB0000-0x0000000004F16000-memory.dmp

        Filesize

        408KB

      • memory/5024-9-0x0000000004D10000-0x0000000004D32000-memory.dmp

        Filesize

        136KB

      • memory/5024-8-0x0000000004F40000-0x0000000005568000-memory.dmp

        Filesize

        6.2MB

      • memory/5024-7-0x00000000028B0000-0x00000000028C0000-memory.dmp

        Filesize

        64KB

      • memory/5024-6-0x00000000028B0000-0x00000000028C0000-memory.dmp

        Filesize

        64KB

      • memory/5024-4-0x0000000002720000-0x0000000002756000-memory.dmp

        Filesize

        216KB

      • memory/5024-5-0x0000000074C30000-0x00000000753E0000-memory.dmp

        Filesize

        7.7MB