Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22-09-2023 12:52

General

  • Target

    865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426.exe

  • Size

    4.1MB

  • MD5

    4f4f7b7325f246831338c36a8fded74f

  • SHA1

    4372e291c9d2b6672df9f843b6a092e0b1417916

  • SHA256

    865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426

  • SHA512

    2bbcdf44203dd6c8aeec75eb389d00a6fed67f180872268bb448dce29043620a212c440696742be04b9e2b1f81b1e06e35d0bf7a58e5266ce5ba57550bf93e7b

  • SSDEEP

    98304:ve6/ypJ7ydBaPBFZLNMUh+uhgFdXRjI8C4FMU1Vi/+x7vOO72zDPD8VupUZKJ5b:2BpHBNM+Bhg1jI8C4aYw/+hvn7mAWUZe

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 21 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 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\865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426.exe
    "C:\Users\Admin\AppData\Local\Temp\865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4304
    • C:\Users\Admin\AppData\Local\Temp\865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426.exe
      "C:\Users\Admin\AppData\Local\Temp\865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • 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:500
      • 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:3032
      • 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:612
        • 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
          • Modifies data under HKEY_USERS
          PID:1612
      • 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:520
      • 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:1352
      • 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:1624
        • 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:3332
        • 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:208
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2080
          • 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:2480
          • 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:4180
          • 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:3788
          • 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:3120

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mqgqtqkg.4ns.ps1

      Filesize

      1B

      MD5

      c4ca4238a0b923820dcc509a6f75849b

      SHA1

      356a192b7913b04c54574d18c28d46e6395428ab

      SHA256

      6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

      SHA512

      4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • 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

      1c19c16e21c97ed42d5beabc93391fc5

      SHA1

      8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

      SHA256

      1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

      SHA512

      7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

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

      Filesize

      18KB

      MD5

      da7c46c03fb7849c6f691497ed4e171c

      SHA1

      53fa2c495fec8ceb76be4ecf5e503fe080f77b37

      SHA256

      80cfcc8ff8d66b21fb4ec15cc7ecf2da2b90b0848cf1c891cb3618847eade9d5

      SHA512

      58f342968d14505bbca68e4ccbc2103842ac964433a493da7f17de68b5913c35308124e5d1d9b90c72360d86c9535495f6b1beb262c7f5b3f399248bc185d62b

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

      Filesize

      18KB

      MD5

      7625eafd8613214471bfa424359317e2

      SHA1

      7ab605f133764d91cac5afa9c499be47db983eac

      SHA256

      24e7b6ea4ea7f4aef398c3f7f464a4a2a9f2aa77846f4ef1943bed1bd18c8b3b

      SHA512

      a1c31c0e4d76faa5f1212c626f055e130fb788a10e2f4b6250d8e66b3a6ad3f21adcb10348bbba9ca83e3a4e7b4166d2f4cb804efb5cc0a5ef3791f8123122aa

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

      Filesize

      18KB

      MD5

      541fe653a4996697f7cfb6f14cd00bce

      SHA1

      f79765fd27e2fdaa0801c180af9283fd272705d6

      SHA256

      2e69e8c347a24efbbfa43e0067dad64dd1be4bc09290e6bb500cb5b8c8cfdc39

      SHA512

      b7e84abcd7b1a7874b6892ff56a3259c45e585ea1bd69cab2b213b3cff69f555edcbc1e2ed74fe2ce1131a9ff938f32265274738af79496663cef56878217d15

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

      Filesize

      18KB

      MD5

      877f6fd3c1aab6c7f68ac623758c9478

      SHA1

      7f94d12c9882a4e5a76e17dd736a9a829c5d1166

      SHA256

      da64beb349bbf53efdd1a52f0fddb134e31d6fb9729f9ebe7e1bce2ad77f925a

      SHA512

      c72b6315dbc979285834769ccf61dddc9c6cd5fabfa46ecea786b3bd281fc909de8125992d8da859c2fb2731eea8ab9f555e5c15f0130152faacaf5b9c0d6b78

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

      Filesize

      18KB

      MD5

      eb8738f5e6905f8969de0f3dc7a0cc31

      SHA1

      70dfd3ae036c2dcee1a316d043c7d257d38d6140

      SHA256

      3c016a2814eafdbfcc0c0067c0d3c77a76e344bb452e43e196e10d7fc3b5cb44

      SHA512

      a531a57fc5b31f3b61baeb09c5990c63cf2d101fa613b4875d337b40fb589a811c733f72c091bd5a9887da534abf0fa5449cf5ff28cff0b989addef17a44854e

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      4f4f7b7325f246831338c36a8fded74f

      SHA1

      4372e291c9d2b6672df9f843b6a092e0b1417916

      SHA256

      865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426

      SHA512

      2bbcdf44203dd6c8aeec75eb389d00a6fed67f180872268bb448dce29043620a212c440696742be04b9e2b1f81b1e06e35d0bf7a58e5266ce5ba57550bf93e7b

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      4f4f7b7325f246831338c36a8fded74f

      SHA1

      4372e291c9d2b6672df9f843b6a092e0b1417916

      SHA256

      865a6e0c6370b9ef006115140e0093fefc3d35de84715388956c93ce48963426

      SHA512

      2bbcdf44203dd6c8aeec75eb389d00a6fed67f180872268bb448dce29043620a212c440696742be04b9e2b1f81b1e06e35d0bf7a58e5266ce5ba57550bf93e7b

    • memory/500-307-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/500-469-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/500-810-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/500-306-0x0000000002920000-0x0000000002D18000-memory.dmp

      Filesize

      4.0MB

    • memory/500-1053-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/520-561-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/520-802-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/520-582-0x000000007E8A0000-0x000000007E8B0000-memory.dmp

      Filesize

      64KB

    • memory/520-583-0x00000000707A0000-0x00000000707EB000-memory.dmp

      Filesize

      300KB

    • memory/520-589-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/520-562-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/520-584-0x00000000707F0000-0x0000000070B40000-memory.dmp

      Filesize

      3.3MB

    • memory/520-560-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/772-16-0x0000000002B20000-0x0000000002F18000-memory.dmp

      Filesize

      4.0MB

    • memory/772-305-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/772-1-0x0000000002F20000-0x000000000380B000-memory.dmp

      Filesize

      8.9MB

    • memory/772-2-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/772-0-0x0000000002B20000-0x0000000002F18000-memory.dmp

      Filesize

      4.0MB

    • memory/772-67-0x0000000002F20000-0x000000000380B000-memory.dmp

      Filesize

      8.9MB

    • memory/772-70-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1352-806-0x00000000041E0000-0x00000000041F0000-memory.dmp

      Filesize

      64KB

    • memory/1352-807-0x00000000041E0000-0x00000000041F0000-memory.dmp

      Filesize

      64KB

    • memory/1352-830-0x0000000070810000-0x0000000070B60000-memory.dmp

      Filesize

      3.3MB

    • memory/1352-1049-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/1352-835-0x00000000041E0000-0x00000000041F0000-memory.dmp

      Filesize

      64KB

    • memory/1352-1014-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/1352-829-0x00000000707A0000-0x00000000707EB000-memory.dmp

      Filesize

      300KB

    • memory/1352-808-0x0000000007420000-0x0000000007770000-memory.dmp

      Filesize

      3.3MB

    • memory/1352-805-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/1624-1803-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1055-0x0000000002E00000-0x00000000031F8000-memory.dmp

      Filesize

      4.0MB

    • memory/1624-1655-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1237-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1804-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1805-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1806-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1807-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1808-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1809-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1810-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1057-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1624-1056-0x0000000003300000-0x0000000003BEB000-memory.dmp

      Filesize

      8.9MB

    • memory/3032-339-0x0000000006B70000-0x0000000006B80000-memory.dmp

      Filesize

      64KB

    • memory/3032-556-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/3032-543-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/3032-338-0x0000000009090000-0x0000000009135000-memory.dmp

      Filesize

      660KB

    • memory/3032-333-0x00000000707F0000-0x0000000070B40000-memory.dmp

      Filesize

      3.3MB

    • memory/3032-332-0x00000000707A0000-0x00000000707EB000-memory.dmp

      Filesize

      300KB

    • memory/3032-313-0x0000000007CD0000-0x0000000007D1B000-memory.dmp

      Filesize

      300KB

    • memory/3032-312-0x00000000077E0000-0x0000000007B30000-memory.dmp

      Filesize

      3.3MB

    • memory/3032-311-0x0000000006B70000-0x0000000006B80000-memory.dmp

      Filesize

      64KB

    • memory/3032-310-0x0000000073A70000-0x000000007415E000-memory.dmp

      Filesize

      6.9MB

    • memory/4304-304-0x0000000073970000-0x000000007405E000-memory.dmp

      Filesize

      6.9MB

    • memory/4304-286-0x000000000A740000-0x000000000A748000-memory.dmp

      Filesize

      32KB

    • memory/4304-281-0x000000000A850000-0x000000000A86A000-memory.dmp

      Filesize

      104KB

    • memory/4304-158-0x00000000053D0000-0x00000000053E0000-memory.dmp

      Filesize

      64KB

    • memory/4304-155-0x0000000073970000-0x000000007405E000-memory.dmp

      Filesize

      6.9MB

    • memory/4304-86-0x000000000A980000-0x000000000AA14000-memory.dmp

      Filesize

      592KB

    • memory/4304-85-0x00000000053D0000-0x00000000053E0000-memory.dmp

      Filesize

      64KB

    • memory/4304-84-0x000000000A7A0000-0x000000000A845000-memory.dmp

      Filesize

      660KB

    • memory/4304-79-0x0000000007650000-0x000000000766E000-memory.dmp

      Filesize

      120KB

    • memory/4304-78-0x00000000706D0000-0x0000000070A20000-memory.dmp

      Filesize

      3.3MB

    • memory/4304-77-0x0000000070680000-0x00000000706CB000-memory.dmp

      Filesize

      300KB

    • memory/4304-76-0x000000000A760000-0x000000000A793000-memory.dmp

      Filesize

      204KB

    • memory/4304-75-0x000000007F220000-0x000000007F230000-memory.dmp

      Filesize

      64KB

    • memory/4304-66-0x0000000009910000-0x0000000009986000-memory.dmp

      Filesize

      472KB

    • memory/4304-35-0x0000000009850000-0x000000000988C000-memory.dmp

      Filesize

      240KB

    • memory/4304-15-0x0000000008B30000-0x0000000008B7B000-memory.dmp

      Filesize

      300KB

    • memory/4304-14-0x00000000087B0000-0x00000000087CC000-memory.dmp

      Filesize

      112KB

    • memory/4304-13-0x00000000083B0000-0x0000000008700000-memory.dmp

      Filesize

      3.3MB

    • memory/4304-12-0x0000000008340000-0x00000000083A6000-memory.dmp

      Filesize

      408KB

    • memory/4304-11-0x00000000080F0000-0x0000000008156000-memory.dmp

      Filesize

      408KB

    • memory/4304-10-0x0000000008050000-0x0000000008072000-memory.dmp

      Filesize

      136KB

    • memory/4304-9-0x0000000007A20000-0x0000000008048000-memory.dmp

      Filesize

      6.2MB

    • memory/4304-8-0x00000000053D0000-0x00000000053E0000-memory.dmp

      Filesize

      64KB

    • memory/4304-7-0x00000000052F0000-0x0000000005326000-memory.dmp

      Filesize

      216KB

    • memory/4304-6-0x00000000053D0000-0x00000000053E0000-memory.dmp

      Filesize

      64KB

    • memory/4304-5-0x0000000073970000-0x000000007405E000-memory.dmp

      Filesize

      6.9MB