Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17-09-2023 12:09

General

  • Target

    e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c.exe

  • Size

    4.1MB

  • MD5

    9dc322be85cf4d6bf7992dad07d8ed28

  • SHA1

    b3e7dd20e3fc01403c92800be7e92eb44055e896

  • SHA256

    e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c

  • SHA512

    c91b585ee687c8f6ed5753859f8dd6a3ecc448d83ef9897315d9da91a8b85173033895300f7ffa16427b721f3229c4610e9e5fbf1ad24d42e082699744e916aa

  • SSDEEP

    98304:8W+dvbXW43PB1Oquxod3aHYyxuubZoHSYxLcEKSMhWazyRQU+W0YH93zTuE2:81JXW43PN44yxuu9GJcTSMW883SYHQ9

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 23 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\e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c.exe
    "C:\Users\Admin\AppData\Local\Temp\e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:792
    • C:\Users\Admin\AppData\Local\Temp\e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c.exe
      "C:\Users\Admin\AppData\Local\Temp\e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c.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:3592
      • 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:3260
      • 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:3684
        • 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:2012
      • 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:1332
      • 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:4756
      • 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:4836
        • 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:1452
        • 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:1528
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3656
          • 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:968
          • 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:2544
          • 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:3040
          • 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:4472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kc5y1iv2.zvz.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

      0292f7d66f7ef15db188356dc254427a

      SHA1

      7b887ab2676f888291242cae673811c4e3c30b3d

      SHA256

      b104b88709a3a1f0c68f9b9bf2e8859a3b8884cae17ab0c630446bb854793986

      SHA512

      3a9f109a5698bb42852731ea9f47dfd0fc551c7524b5e33b8b453cd5364c12e9306d111434f4929fa2763f4178d3964dd61d97f2924d7490b5ed280db95e9f95

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

      Filesize

      18KB

      MD5

      91e64b5cec468f7253b06a33c616ed4b

      SHA1

      efe4418733f397e8975466490dc123dbaa5b9257

      SHA256

      fa8222219ad668b78ba4342f2b033029675f90279ac7026a03acfa6af4b920ef

      SHA512

      f5b1fd2efee0ae527d1d166cafbf221230140bfe113b8f09205eb872828e49f44de414706d98d511c8d92a0a152fd164cead48b9793cd5378a396d497d0392b2

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

      Filesize

      18KB

      MD5

      dddbff14d7bf5d494beab01ef7b23e5e

      SHA1

      9440650f7635a43ef4c5080f4c4cab1623789da2

      SHA256

      b6bd60bd86e68cc8cb18ae203be01b7e20cb1d2f19f6bd19d77a920b2b2ec3eb

      SHA512

      e20eb3a85ec36ba65e0f2547f740f4d69f71e76e584e22f00a2a6f11b781b8885abad495d1cc49f50f8502814a5a296a3c286f1204ff447d70cb6c4a370b3a2a

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

      Filesize

      18KB

      MD5

      3e3b88f3b344a303bf4ce58dcc21425d

      SHA1

      77bc6d7b8290e1c55d4d519c9a2426d3389c10a8

      SHA256

      c997d99052e1f82aec07b0ff7326f495ec3a1497f5383ec4bff8d1be565a3142

      SHA512

      51e884513b95368882e8a5bbe1d039987763049bcdf5483513ac8190882d16a4f045dd3107b14388d8e7a42fe9a4e5f4b71c7d7a0dbd7b2f8c7dc08f0c95642e

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

      Filesize

      18KB

      MD5

      572f40c9bd0bc1cdf88d514f6c697b99

      SHA1

      827a3d25581797ff53302ced66aa4c0a8b4a1f80

      SHA256

      a27f4fa559d098874b746d10cf9787c142fc367ff8b99a5f4d742ddbdc07f95d

      SHA512

      50a489016eee01ca5dffb71f0cf94aa1d9d6b0df421b58bd8d1fdf1b5bd4230425ec14deec92823b750eb762f0e890bd20c00ce1e79c775701dc1d0b3f108156

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      9dc322be85cf4d6bf7992dad07d8ed28

      SHA1

      b3e7dd20e3fc01403c92800be7e92eb44055e896

      SHA256

      e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c

      SHA512

      c91b585ee687c8f6ed5753859f8dd6a3ecc448d83ef9897315d9da91a8b85173033895300f7ffa16427b721f3229c4610e9e5fbf1ad24d42e082699744e916aa

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      9dc322be85cf4d6bf7992dad07d8ed28

      SHA1

      b3e7dd20e3fc01403c92800be7e92eb44055e896

      SHA256

      e7842b156944cb494e606ddca5eaac4bd453a41d9e9f773bc2004d924c198a9c

      SHA512

      c91b585ee687c8f6ed5753859f8dd6a3ecc448d83ef9897315d9da91a8b85173033895300f7ffa16427b721f3229c4610e9e5fbf1ad24d42e082699744e916aa

    • memory/792-78-0x000000007EEA0000-0x000000007EEB0000-memory.dmp

      Filesize

      64KB

    • memory/792-7-0x0000000004B20000-0x0000000004B30000-memory.dmp

      Filesize

      64KB

    • memory/792-16-0x0000000008490000-0x00000000084DB000-memory.dmp

      Filesize

      300KB

    • memory/792-14-0x0000000007F10000-0x0000000008260000-memory.dmp

      Filesize

      3.3MB

    • memory/792-13-0x0000000007EA0000-0x0000000007F06000-memory.dmp

      Filesize

      408KB

    • memory/792-12-0x0000000007D30000-0x0000000007D96000-memory.dmp

      Filesize

      408KB

    • memory/792-37-0x0000000008850000-0x000000000888C000-memory.dmp

      Filesize

      240KB

    • memory/792-68-0x0000000009430000-0x00000000094A6000-memory.dmp

      Filesize

      472KB

    • memory/792-75-0x000000000A250000-0x000000000A283000-memory.dmp

      Filesize

      204KB

    • memory/792-76-0x000000006FED0000-0x000000006FF1B000-memory.dmp

      Filesize

      300KB

    • memory/792-6-0x00000000731C0000-0x00000000738AE000-memory.dmp

      Filesize

      6.9MB

    • memory/792-79-0x000000006FF20000-0x0000000070270000-memory.dmp

      Filesize

      3.3MB

    • memory/792-80-0x000000000A230000-0x000000000A24E000-memory.dmp

      Filesize

      120KB

    • memory/792-11-0x0000000007520000-0x0000000007542000-memory.dmp

      Filesize

      136KB

    • memory/792-85-0x000000000A290000-0x000000000A335000-memory.dmp

      Filesize

      660KB

    • memory/792-86-0x0000000004B20000-0x0000000004B30000-memory.dmp

      Filesize

      64KB

    • memory/792-87-0x000000000A4B0000-0x000000000A544000-memory.dmp

      Filesize

      592KB

    • memory/792-10-0x0000000007700000-0x0000000007D28000-memory.dmp

      Filesize

      6.2MB

    • memory/792-158-0x00000000731C0000-0x00000000738AE000-memory.dmp

      Filesize

      6.9MB

    • memory/792-233-0x0000000004B20000-0x0000000004B30000-memory.dmp

      Filesize

      64KB

    • memory/792-283-0x000000000A410000-0x000000000A42A000-memory.dmp

      Filesize

      104KB

    • memory/792-288-0x00000000087D0000-0x00000000087D8000-memory.dmp

      Filesize

      32KB

    • memory/792-305-0x0000000004B20000-0x0000000004B30000-memory.dmp

      Filesize

      64KB

    • memory/792-307-0x00000000731C0000-0x00000000738AE000-memory.dmp

      Filesize

      6.9MB

    • memory/792-15-0x00000000082C0000-0x00000000082DC000-memory.dmp

      Filesize

      112KB

    • memory/792-8-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

      Filesize

      216KB

    • memory/792-9-0x0000000004B20000-0x0000000004B30000-memory.dmp

      Filesize

      64KB

    • memory/1332-806-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/1332-593-0x0000000004A30000-0x0000000004A40000-memory.dmp

      Filesize

      64KB

    • memory/1332-588-0x0000000070040000-0x0000000070390000-memory.dmp

      Filesize

      3.3MB

    • memory/1332-587-0x000000006FFF0000-0x000000007003B000-memory.dmp

      Filesize

      300KB

    • memory/1332-567-0x0000000004A30000-0x0000000004A40000-memory.dmp

      Filesize

      64KB

    • memory/1332-566-0x0000000004A30000-0x0000000004A40000-memory.dmp

      Filesize

      64KB

    • memory/1332-565-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/1452-1060-0x0000000073220000-0x000000007390E000-memory.dmp

      Filesize

      6.9MB

    • memory/1452-1061-0x00000000073D0000-0x0000000007720000-memory.dmp

      Filesize

      3.3MB

    • memory/1452-1063-0x0000000007930000-0x000000000797B000-memory.dmp

      Filesize

      300KB

    • memory/3260-338-0x0000000070040000-0x0000000070390000-memory.dmp

      Filesize

      3.3MB

    • memory/3260-317-0x0000000007DA0000-0x00000000080F0000-memory.dmp

      Filesize

      3.3MB

    • memory/3260-559-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/3260-314-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/3260-345-0x0000000007130000-0x0000000007140000-memory.dmp

      Filesize

      64KB

    • memory/3260-316-0x0000000007130000-0x0000000007140000-memory.dmp

      Filesize

      64KB

    • memory/3260-343-0x00000000097D0000-0x0000000009875000-memory.dmp

      Filesize

      660KB

    • memory/3260-315-0x0000000007130000-0x0000000007140000-memory.dmp

      Filesize

      64KB

    • memory/3260-337-0x000000006FFF0000-0x000000007003B000-memory.dmp

      Filesize

      300KB

    • memory/3260-318-0x0000000008240000-0x000000000828B000-memory.dmp

      Filesize

      300KB

    • memory/3592-1053-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3592-1021-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3592-310-0x0000000002A10000-0x0000000002E09000-memory.dmp

      Filesize

      4.0MB

    • memory/3592-344-0x0000000002A10000-0x0000000002E09000-memory.dmp

      Filesize

      4.0MB

    • memory/3592-560-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3592-311-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3592-563-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3800-77-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3800-308-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3800-2-0x0000000002E60000-0x000000000374B000-memory.dmp

      Filesize

      8.9MB

    • memory/3800-3-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3800-17-0x0000000002A50000-0x0000000002E53000-memory.dmp

      Filesize

      4.0MB

    • memory/3800-28-0x0000000002E60000-0x000000000374B000-memory.dmp

      Filesize

      8.9MB

    • memory/3800-1-0x0000000002A50000-0x0000000002E53000-memory.dmp

      Filesize

      4.0MB

    • memory/3800-156-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4756-809-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/4756-829-0x000000006FFF0000-0x000000007003B000-memory.dmp

      Filesize

      300KB

    • memory/4756-1049-0x00000000732C0000-0x00000000739AE000-memory.dmp

      Filesize

      6.9MB

    • memory/4756-835-0x0000000004750000-0x0000000004760000-memory.dmp

      Filesize

      64KB

    • memory/4756-830-0x0000000070040000-0x0000000070390000-memory.dmp

      Filesize

      3.3MB

    • memory/4836-1805-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1544-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1056-0x0000000003100000-0x00000000034F9000-memory.dmp

      Filesize

      4.0MB

    • memory/4836-1804-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1057-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1806-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1807-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1808-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1809-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1810-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1811-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1812-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4836-1813-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB