Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2022, 11:16

General

  • Target

    ca1d05c76ec5d74aedb6f4cc7956913144032353514a86c36d0598ac1fa3cfa8.exe

  • Size

    727KB

  • MD5

    7bee8611c7ace685d32a5fc10c33c5d2

  • SHA1

    b6bd0340111655d35f02db09575d94acfc9d4278

  • SHA256

    ca1d05c76ec5d74aedb6f4cc7956913144032353514a86c36d0598ac1fa3cfa8

  • SHA512

    8dcc8935490a9aed66b523da33c0859b8f6fcae138a841f84e7452e5ae3236aa6451de3b994b4a4143510cae563adf6522ef171850a95977fcd108bfc768daeb

  • 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 11 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca1d05c76ec5d74aedb6f4cc7956913144032353514a86c36d0598ac1fa3cfa8.exe
    "C:\Users\Admin\AppData\Local\Temp\ca1d05c76ec5d74aedb6f4cc7956913144032353514a86c36d0598ac1fa3cfa8.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:1484
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2232
        • 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:1724
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5060
      • 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:3500
        • 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:4272
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:1284
        • 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:4328
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:1928
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
            PID:4832
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:400
          • 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:3024
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:4896
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
              PID:5068
              • C:\Windows\SysWOW64\schtasks.exe
                SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                4⤵
                • Creates scheduled task(s)
                PID:4680
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              3⤵
                PID:1612
                • C:\Windows\SysWOW64\schtasks.exe
                  SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  4⤵
                  • Creates scheduled task(s)
                  PID:3524
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                  PID:2004
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:4868
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                    PID:4108
                    • C:\Windows\SysWOW64\schtasks.exe
                      SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      4⤵
                      • Creates scheduled task(s)
                      PID:3696
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk1264" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    3⤵
                      PID:4304
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk1264" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:4752
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk2527" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                        PID:3216
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk2527" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:5076
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk4167" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:2812
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk4167" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:2108
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk367" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        3⤵
                          PID:4508
                        • C:\Windows\SysWOW64\cmd.exe
                          "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                          3⤵
                            PID:5016
                            • C:\Windows\SysWOW64\chcp.com
                              chcp 1251
                              4⤵
                                PID:1912
                            • C:\Windows\SysWOW64\cmd.exe
                              "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                              3⤵
                                PID:5056
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 1251
                                  4⤵
                                    PID:3452
                                • C:\Windows\SysWOW64\cmd.exe
                                  "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                                  3⤵
                                    PID:3744
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 1251
                                      4⤵
                                        PID:4008

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • C:\ProgramData\Dllhost\dllhost.exe

                                  Filesize

                                  932KB

                                  MD5

                                  3d6e67dda37105a806c44f3daea00acc

                                  SHA1

                                  9f83645d38e8021d3086014bdc78af7a70ca4730

                                  SHA256

                                  9ea3d1f7c22339a9a5d0f17a7d7e376f275b15a3b5bfd6a824b2e147349be801

                                  SHA512

                                  fe0050358457cfbe525592d15c73cd85944fa8c12932198f0f5a9f21881053319f626dc8b0b2e9c6ffafacbab5886d2b7c1800c5bcb02e109315613429047d7b

                                • C:\ProgramData\Dllhost\dllhost.exe

                                  Filesize

                                  932KB

                                  MD5

                                  3d6e67dda37105a806c44f3daea00acc

                                  SHA1

                                  9f83645d38e8021d3086014bdc78af7a70ca4730

                                  SHA256

                                  9ea3d1f7c22339a9a5d0f17a7d7e376f275b15a3b5bfd6a824b2e147349be801

                                  SHA512

                                  fe0050358457cfbe525592d15c73cd85944fa8c12932198f0f5a9f21881053319f626dc8b0b2e9c6ffafacbab5886d2b7c1800c5bcb02e109315613429047d7b

                                • 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

                                  d410a2cfca75923daeacb36a8f136a6a

                                  SHA1

                                  5a0155ae4494394a88fc31ec85694c4182602ad4

                                  SHA256

                                  214df703f1d52e68157905abb5933e25526a307523054dcbacdc7a39aa2e3dc3

                                  SHA512

                                  39438fc0016dd4a430b39518a2529547eb574c844b3243153e5503046a2e1951992f11db241f99e3fb6730d066a708ed073e62dc0e92ba4be76ce87b0cd645c5

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

                                  Filesize

                                  18KB

                                  MD5

                                  f7694b7839c71bd834e0a662e0c663f6

                                  SHA1

                                  c99bbff99d5537a1100aa6d0da4e2a57099829b7

                                  SHA256

                                  7c9368a26c557ff4a89206012e60af3515faa93def4715afa2380a3aaeb8c7eb

                                  SHA512

                                  c396b02c8fbae3b99fbb893ffc8696aa680af569900d858577579af3133c35e02d001964a9c92220a7413e6042be3628d88200fc78bbe2158c50f214a65c22b1

                                • memory/1724-158-0x0000000070380000-0x00000000703CC000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/2232-148-0x00000000074C0000-0x0000000007B3A000-memory.dmp

                                  Filesize

                                  6.5MB

                                • memory/2232-141-0x0000000004D00000-0x0000000005328000-memory.dmp

                                  Filesize

                                  6.2MB

                                • memory/2232-150-0x0000000006EB0000-0x0000000006EBA000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/2232-151-0x00000000070E0000-0x0000000007176000-memory.dmp

                                  Filesize

                                  600KB

                                • memory/2232-152-0x0000000007080000-0x000000000708E000-memory.dmp

                                  Filesize

                                  56KB

                                • memory/2232-153-0x0000000007180000-0x000000000719A000-memory.dmp

                                  Filesize

                                  104KB

                                • memory/2232-154-0x00000000070C0000-0x00000000070C8000-memory.dmp

                                  Filesize

                                  32KB

                                • memory/2232-147-0x0000000006080000-0x000000000609E000-memory.dmp

                                  Filesize

                                  120KB

                                • memory/2232-146-0x0000000070380000-0x00000000703CC000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/2232-145-0x0000000006D30000-0x0000000006D62000-memory.dmp

                                  Filesize

                                  200KB

                                • memory/2232-140-0x0000000002230000-0x0000000002266000-memory.dmp

                                  Filesize

                                  216KB

                                • memory/2232-144-0x0000000005B20000-0x0000000005B3E000-memory.dmp

                                  Filesize

                                  120KB

                                • memory/2232-149-0x0000000006E60000-0x0000000006E7A000-memory.dmp

                                  Filesize

                                  104KB

                                • memory/2232-143-0x00000000053A0000-0x0000000005406000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2232-142-0x0000000004C70000-0x0000000004C92000-memory.dmp

                                  Filesize

                                  136KB

                                • memory/3500-165-0x00000000009D0000-0x0000000000A80000-memory.dmp

                                  Filesize

                                  704KB

                                • memory/5028-135-0x0000000004D90000-0x0000000004D9A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/5028-136-0x0000000005050000-0x00000000050B6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/5028-132-0x0000000000340000-0x00000000003E8000-memory.dmp

                                  Filesize

                                  672KB

                                • memory/5028-134-0x0000000004E00000-0x0000000004E92000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/5028-133-0x00000000053B0000-0x0000000005954000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/5060-161-0x0000000070380000-0x00000000703CC000-memory.dmp

                                  Filesize

                                  304KB