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Analysis

  • max time kernel
    169s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2022, 04:22

General

  • Target

    cccf27993459362488c165354e0eb9324c77407fd436564e73beb629e6db67dd.exe

  • Size

    730KB

  • MD5

    2f5fc3bfc5041a0d51ef82bfa0ac4553

  • SHA1

    eacf00ed835054a76181d823260203c7dc6fd9ec

  • SHA256

    cccf27993459362488c165354e0eb9324c77407fd436564e73beb629e6db67dd

  • SHA512

    86b27ec7473e788ebe2cd1b111fe7ee98c4184ce79a19aff3205bb34595bb8721f7bcedfe501cdeda5dd4ceee26e0c09356f724ebd0bd43ef58827de109a281c

  • SSDEEP

    768:rZmchlXKGREW6VA6joSRhFH+C9Pe2auEqainmngYWxuv8Gwmwoe9R4ZstojtfcWv:schl6M+lpDCUoHid0bIrlyR

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cccf27993459362488c165354e0eb9324c77407fd436564e73beb629e6db67dd.exe
    "C:\Users\Admin\AppData\Local\Temp\cccf27993459362488c165354e0eb9324c77407fd436564e73beb629e6db67dd.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2256
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:3208
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2644
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3896
      • C:\ProgramData\Dllhost\dllhost.exe
        "C:\ProgramData\Dllhost\dllhost.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4680
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3176
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4800
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1424
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:2428
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2124
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4076
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2264
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:328
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
            PID:4880
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:1668
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
              PID:3240
              • C:\Windows\SysWOW64\schtasks.exe
                SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                4⤵
                • Creates scheduled task(s)
                PID:740
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              3⤵
                PID:4232
                • C:\Windows\SysWOW64\schtasks.exe
                  SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  4⤵
                  • Creates scheduled task(s)
                  PID:3624
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1836
                • C:\Windows\SysWOW64\schtasks.exe
                  SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  4⤵
                  • Creates scheduled task(s)
                  PID:5096
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk5176" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                  PID:4136
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk5176" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:2276
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3465" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                    PID:2476
                    • C:\Windows\SysWOW64\schtasks.exe
                      SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3465" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      4⤵
                      • Creates scheduled task(s)
                      PID:2740
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk3782" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    3⤵
                      PID:4480
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk3782" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:3356
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk3516" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                        PID:4272
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk3516" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:3652
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                        3⤵
                          PID:2832
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 1251
                            4⤵
                              PID:2316
                          • C:\Windows\SysWOW64\cmd.exe
                            "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                            3⤵
                              PID:4948
                              • C:\Windows\SysWOW64\chcp.com
                                chcp 1251
                                4⤵
                                  PID:1756

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          • C:\ProgramData\Dllhost\dllhost.exe

                            Filesize

                            947KB

                            MD5

                            1f19232a08c204aab12065a95f544922

                            SHA1

                            f17ffd19592a56790d0efdc2eada1ec90fad45eb

                            SHA256

                            9b2ccd1adba5cc4bba485f10f2ba30011bb06d832d294689224c3b1f71c60ba7

                            SHA512

                            1281fbfa4c5bd2687616d50d4249310af4a280ce2e85509b5834806912e029c2d0e6f3875c85ab503beaa79ba2f708eb849ec8b02538ee1393f87401c4d70033

                          • C:\ProgramData\Dllhost\dllhost.exe

                            Filesize

                            947KB

                            MD5

                            1f19232a08c204aab12065a95f544922

                            SHA1

                            f17ffd19592a56790d0efdc2eada1ec90fad45eb

                            SHA256

                            9b2ccd1adba5cc4bba485f10f2ba30011bb06d832d294689224c3b1f71c60ba7

                            SHA512

                            1281fbfa4c5bd2687616d50d4249310af4a280ce2e85509b5834806912e029c2d0e6f3875c85ab503beaa79ba2f708eb849ec8b02538ee1393f87401c4d70033

                          • C:\ProgramData\HostData\logs.uce

                            Filesize

                            497B

                            MD5

                            13fda2ab01b83a5130842a5bab3892d3

                            SHA1

                            6e18e4b467cde054a63a95d4dfc030f156ecd215

                            SHA256

                            76973d42c8fceceab7ec85b3d01b218db92564993e93a9bea31c52aa73aeee9e

                            SHA512

                            c51f9fd6e452fbeeedd4dfaba3c7c887e337f01e68abdd27d4032f8be85def7ef3cf0c77bf60e425b085b76c0539464c6b6e5e805a69397c5519e8ccf9fffccc

                          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

                            Filesize

                            2KB

                            MD5

                            968cb9309758126772781b83adb8a28f

                            SHA1

                            8da30e71accf186b2ba11da1797cf67f8f78b47c

                            SHA256

                            92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

                            SHA512

                            4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

                          • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                            Filesize

                            18KB

                            MD5

                            41eaa0b062d892c6e350a2d0030fbd67

                            SHA1

                            ef7f7cf5e11a39eaac452dc515bed36138664c2b

                            SHA256

                            2b352d70281cd72b6594b3db4d1110e4bc10e6c40651edd40ba65c249a027ba0

                            SHA512

                            73716908394efb3a080c3355c2567c2b6cf852e6ed7053d97acf7b180cfa9c5b9085acd158085a9b67d05da57181ab5bc9bfdc6676dc45f1ea56baaffb827ae7

                          • memory/2644-141-0x00000000056B0000-0x0000000005CD8000-memory.dmp

                            Filesize

                            6.2MB

                          • memory/2644-147-0x0000000006C30000-0x0000000006C4E000-memory.dmp

                            Filesize

                            120KB

                          • memory/2644-152-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

                            Filesize

                            56KB

                          • memory/2644-153-0x0000000007C00000-0x0000000007C1A000-memory.dmp

                            Filesize

                            104KB

                          • memory/2644-154-0x0000000007BF0000-0x0000000007BF8000-memory.dmp

                            Filesize

                            32KB

                          • memory/2644-150-0x00000000079F0000-0x00000000079FA000-memory.dmp

                            Filesize

                            40KB

                          • memory/2644-149-0x0000000007990000-0x00000000079AA000-memory.dmp

                            Filesize

                            104KB

                          • memory/2644-148-0x0000000007FF0000-0x000000000866A000-memory.dmp

                            Filesize

                            6.5MB

                          • memory/2644-151-0x0000000007C20000-0x0000000007CB6000-memory.dmp

                            Filesize

                            600KB

                          • memory/2644-146-0x0000000070220000-0x000000007026C000-memory.dmp

                            Filesize

                            304KB

                          • memory/2644-145-0x0000000007640000-0x0000000007672000-memory.dmp

                            Filesize

                            200KB

                          • memory/2644-144-0x0000000006660000-0x000000000667E000-memory.dmp

                            Filesize

                            120KB

                          • memory/2644-143-0x0000000005D50000-0x0000000005DB6000-memory.dmp

                            Filesize

                            408KB

                          • memory/2644-142-0x0000000005480000-0x00000000054A2000-memory.dmp

                            Filesize

                            136KB

                          • memory/2644-140-0x0000000002C50000-0x0000000002C86000-memory.dmp

                            Filesize

                            216KB

                          • memory/3896-184-0x0000000070220000-0x000000007026C000-memory.dmp

                            Filesize

                            304KB

                          • memory/4680-158-0x0000000000BD0000-0x0000000000C80000-memory.dmp

                            Filesize

                            704KB

                          • memory/4920-132-0x00000000005C0000-0x0000000000668000-memory.dmp

                            Filesize

                            672KB

                          • memory/4920-136-0x0000000005190000-0x00000000051F6000-memory.dmp

                            Filesize

                            408KB

                          • memory/4920-135-0x0000000005010000-0x000000000501A000-memory.dmp

                            Filesize

                            40KB

                          • memory/4920-134-0x0000000005050000-0x00000000050E2000-memory.dmp

                            Filesize

                            584KB

                          • memory/4920-133-0x00000000056D0000-0x0000000005C74000-memory.dmp

                            Filesize

                            5.6MB