Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-06-2023 04:39

General

  • Target

    6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19.exe

  • Size

    4.2MB

  • MD5

    d00eb119346298effa8ee742cddf71e6

  • SHA1

    cc1ef61937ffbe0b0202adf41b23650a055be6cc

  • SHA256

    6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19

  • SHA512

    137e2d761f64bcc7287a82315834b866fd5b2c40e1c7dbf06ba8167074e950f79998295f166b25f8721d55f1cb983a6aab79d59e580baee78a6726b4932cc6fb

  • SSDEEP

    98304:GwxLTHiVfND5jI8y46oyWY2H3chRPWTrgRgGL/Yh55yv:GwxHode46pGHKwrgacy50

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 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\6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19.exe
    "C:\Users\Admin\AppData\Local\Temp\6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4272
    • C:\Users\Admin\AppData\Local\Temp\6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19.exe
      "C:\Users\Admin\AppData\Local\Temp\6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19.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:2292
      • 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:5056
      • 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:3380
        • 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:4704
      • 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:3856
      • 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:2228
      • 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:2124
        • 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:4088
        • 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:4716
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4972
          • 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:4840
          • 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:4344
          • 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:1796
          • 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:4212

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cb1vqnfv.x0i.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

      d9e7528a6fd3607a79ca564105788a64

      SHA1

      6f1c549260d3b4a2c626f04806a020fdf5d87b4e

      SHA256

      5e717e519a779a4abe6d7b4e44134f4f82d4e089d7d554bef2c1c738a3a650c9

      SHA512

      37f4912eeadba02294d892269502123fd3417284dda700caf23ea46e4ce836e8c8ab28f9abb5eb2312e6ba555e4fa507bb0f1b166b1e4fddf6dc48abaddca05c

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

      18KB

      MD5

      6e3dc740ddafe4944e4fa24d5b58ea32

      SHA1

      70dd9a8d1d3c32856234b268c45084aae4cffbc4

      SHA256

      868b060a7e1ea8f80ea687669adae39b9172db0d48227896dad739f0776498ca

      SHA512

      a0443a22126898ad2777f8ea06bb7978469f366c537ffc193ec9366c017b8b1126c239e51e5816bf9e0e31fb1bf7fed252a23b8282aeffd03dab0734697053bb

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

      18KB

      MD5

      b21debc97119b1e95baa0a797f6a1fe0

      SHA1

      f94b3c5161396d0a32f747af3709f87338794c27

      SHA256

      e781d20ca4623dae43087754fd061e9482303e5bd581893ca7b7a12f21a47149

      SHA512

      754e7ab7532f2e8cb7dce23d19548422f5ab228a0436f3a86269cf278c906f345952d8dc6c60957893ae8ee33427d5272975b4520f99b5e1ddcf679295de746a

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

      18KB

      MD5

      9c2964b8bb9818ff0a2318f04891f799

      SHA1

      1972be9a6909a7d2e3aa9039cdaea33625053323

      SHA256

      f3e88af0e442b31d8816944f429191d650e8eae23b71939d26619c40cf5995a0

      SHA512

      da66e11a3c85a1c69b783fe1398ae8ef246685d04cc51c11a1897a8c7610c4fb5b3112edfea97541b28fb9277f765b0a8bbb58938da604e8e5b70b7ea35dbf1f

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

      18KB

      MD5

      cef6e945e17cc7b69cc862eafa39018e

      SHA1

      c32a5f4476f713232c24189ae1aa94e350c0fd98

      SHA256

      34e6a6ec83d4698b4a8446d8e71cbaf57570b75c7117d2f718ba80a67faac4e8

      SHA512

      a86be7e89854f8cb0a325e9a99b7eb6ed0ae3d8b8cb0a0a4352b499b4716987caecb039b25341b3281a872372de286ae818501f9abbecc483765440b44c228d4

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      d00eb119346298effa8ee742cddf71e6

      SHA1

      cc1ef61937ffbe0b0202adf41b23650a055be6cc

      SHA256

      6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19

      SHA512

      137e2d761f64bcc7287a82315834b866fd5b2c40e1c7dbf06ba8167074e950f79998295f166b25f8721d55f1cb983a6aab79d59e580baee78a6726b4932cc6fb

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      d00eb119346298effa8ee742cddf71e6

      SHA1

      cc1ef61937ffbe0b0202adf41b23650a055be6cc

      SHA256

      6779fef33a976fbeed185868206a253fadba4513a6b951f6c7d9c951c29b3d19

      SHA512

      137e2d761f64bcc7287a82315834b866fd5b2c40e1c7dbf06ba8167074e950f79998295f166b25f8721d55f1cb983a6aab79d59e580baee78a6726b4932cc6fb

    • memory/2124-1890-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1891-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1888-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1421-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1889-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1895-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1894-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1738-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1893-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2124-1892-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2228-905-0x0000000007C10000-0x0000000007F60000-memory.dmp
      Filesize

      3.3MB

    • memory/2228-1000-0x0000000003140000-0x0000000003150000-memory.dmp
      Filesize

      64KB

    • memory/2228-927-0x000000007EF60000-0x000000007EF70000-memory.dmp
      Filesize

      64KB

    • memory/2228-907-0x0000000003140000-0x0000000003150000-memory.dmp
      Filesize

      64KB

    • memory/2228-908-0x0000000003140000-0x0000000003150000-memory.dmp
      Filesize

      64KB

    • memory/2292-1029-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2292-1149-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/2292-660-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/3856-665-0x0000000006E10000-0x0000000006E20000-memory.dmp
      Filesize

      64KB

    • memory/3856-741-0x0000000006E10000-0x0000000006E20000-memory.dmp
      Filesize

      64KB

    • memory/3856-685-0x000000007F520000-0x000000007F530000-memory.dmp
      Filesize

      64KB

    • memory/3856-666-0x0000000006E10000-0x0000000006E20000-memory.dmp
      Filesize

      64KB

    • memory/4024-118-0x0000000004CE0000-0x00000000055CB000-memory.dmp
      Filesize

      8.9MB

    • memory/4024-286-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/4024-414-0x0000000000400000-0x0000000002958000-memory.dmp
      Filesize

      37.3MB

    • memory/4088-1157-0x00000000082F0000-0x000000000833B000-memory.dmp
      Filesize

      300KB

    • memory/4088-1158-0x0000000006A50000-0x0000000006A60000-memory.dmp
      Filesize

      64KB

    • memory/4088-1156-0x0000000006A50000-0x0000000006A60000-memory.dmp
      Filesize

      64KB

    • memory/4088-1154-0x00000000079B0000-0x0000000007D00000-memory.dmp
      Filesize

      3.3MB

    • memory/4088-1177-0x000000007EF30000-0x000000007EF40000-memory.dmp
      Filesize

      64KB

    • memory/4088-1182-0x0000000009370000-0x0000000009415000-memory.dmp
      Filesize

      660KB

    • memory/4088-1249-0x0000000006A50000-0x0000000006A60000-memory.dmp
      Filesize

      64KB

    • memory/4272-264-0x0000000005150000-0x0000000005160000-memory.dmp
      Filesize

      64KB

    • memory/4272-187-0x000000000A300000-0x000000000A333000-memory.dmp
      Filesize

      204KB

    • memory/4272-121-0x0000000004EB0000-0x0000000004EE6000-memory.dmp
      Filesize

      216KB

    • memory/4272-122-0x00000000077B0000-0x0000000007DD8000-memory.dmp
      Filesize

      6.2MB

    • memory/4272-123-0x0000000005150000-0x0000000005160000-memory.dmp
      Filesize

      64KB

    • memory/4272-124-0x0000000005150000-0x0000000005160000-memory.dmp
      Filesize

      64KB

    • memory/4272-125-0x00000000074F0000-0x0000000007512000-memory.dmp
      Filesize

      136KB

    • memory/4272-126-0x0000000007690000-0x00000000076F6000-memory.dmp
      Filesize

      408KB

    • memory/4272-412-0x0000000005150000-0x0000000005160000-memory.dmp
      Filesize

      64KB

    • memory/4272-395-0x0000000007220000-0x0000000007228000-memory.dmp
      Filesize

      32KB

    • memory/4272-390-0x0000000007230000-0x000000000724A000-memory.dmp
      Filesize

      104KB

    • memory/4272-263-0x000000007EE80000-0x000000007EE90000-memory.dmp
      Filesize

      64KB

    • memory/4272-194-0x000000000A500000-0x000000000A594000-memory.dmp
      Filesize

      592KB

    • memory/4272-193-0x000000000A340000-0x000000000A3E5000-memory.dmp
      Filesize

      660KB

    • memory/4272-127-0x0000000007700000-0x0000000007766000-memory.dmp
      Filesize

      408KB

    • memory/4272-188-0x000000000A2E0000-0x000000000A2FE000-memory.dmp
      Filesize

      120KB

    • memory/4272-128-0x0000000008080000-0x00000000083D0000-memory.dmp
      Filesize

      3.3MB

    • memory/4272-129-0x0000000007F10000-0x0000000007F2C000-memory.dmp
      Filesize

      112KB

    • memory/4272-130-0x0000000008700000-0x000000000874B000-memory.dmp
      Filesize

      300KB

    • memory/4272-141-0x0000000009320000-0x0000000009396000-memory.dmp
      Filesize

      472KB

    • memory/4272-150-0x00000000094A0000-0x00000000094DC000-memory.dmp
      Filesize

      240KB

    • memory/4344-1645-0x0000000006E40000-0x0000000006E50000-memory.dmp
      Filesize

      64KB

    • memory/4344-1727-0x000000007E9B0000-0x000000007E9C0000-memory.dmp
      Filesize

      64KB

    • memory/4344-1729-0x0000000006E40000-0x0000000006E50000-memory.dmp
      Filesize

      64KB

    • memory/4344-1644-0x0000000006E40000-0x0000000006E50000-memory.dmp
      Filesize

      64KB

    • memory/4840-1402-0x0000000004E80000-0x0000000004E90000-memory.dmp
      Filesize

      64KB

    • memory/4840-1398-0x0000000007DA0000-0x00000000080F0000-memory.dmp
      Filesize

      3.3MB

    • memory/4840-1459-0x0000000004E80000-0x0000000004E90000-memory.dmp
      Filesize

      64KB

    • memory/4840-1422-0x000000007EED0000-0x000000007EEE0000-memory.dmp
      Filesize

      64KB

    • memory/4840-1427-0x00000000098F0000-0x0000000009995000-memory.dmp
      Filesize

      660KB

    • memory/4840-1401-0x0000000004E80000-0x0000000004E90000-memory.dmp
      Filesize

      64KB

    • memory/4840-1400-0x00000000088D0000-0x000000000891B000-memory.dmp
      Filesize

      300KB

    • memory/5056-514-0x0000000006650000-0x0000000006660000-memory.dmp
      Filesize

      64KB

    • memory/5056-418-0x0000000007710000-0x0000000007A60000-memory.dmp
      Filesize

      3.3MB

    • memory/5056-419-0x0000000006650000-0x0000000006660000-memory.dmp
      Filesize

      64KB

    • memory/5056-420-0x0000000006650000-0x0000000006660000-memory.dmp
      Filesize

      64KB

    • memory/5056-421-0x0000000007EE0000-0x0000000007F2B000-memory.dmp
      Filesize

      300KB

    • memory/5056-444-0x0000000008ED0000-0x0000000008F75000-memory.dmp
      Filesize

      660KB

    • memory/5056-513-0x000000007F700000-0x000000007F710000-memory.dmp
      Filesize

      64KB