Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2022, 20:52

General

  • Target

    aa9a86ee90f87fd4e03e73427ed7ccb2f1550ead893612d770a763b84f0cf413.exe

  • Size

    716KB

  • MD5

    5f774c31d940e146b1694553d8529339

  • SHA1

    70131ab23c21316af1f824541125304e49f6d8dd

  • SHA256

    aa9a86ee90f87fd4e03e73427ed7ccb2f1550ead893612d770a763b84f0cf413

  • SHA512

    435dcde46abc8cb099cb2049b5d8356461b4f2f4d50f827b3019933971f320badca507a91021e58c2b3d3e2118ade70edaec78e3dbb3c0c5fb505da92956196c

  • 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 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa9a86ee90f87fd4e03e73427ed7ccb2f1550ead893612d770a763b84f0cf413.exe
    "C:\Users\Admin\AppData\Local\Temp\aa9a86ee90f87fd4e03e73427ed7ccb2f1550ead893612d770a763b84f0cf413.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:4896
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4820
        • 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:1928
        • 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:3880
      • 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:1780
        • 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:376
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:3380
        • 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:1796
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4844
        • 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:4732
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4916
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
            PID:5096
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:3120
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
              PID:4676
              • C:\Windows\SysWOW64\schtasks.exe
                SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                4⤵
                • Creates scheduled task(s)
                PID:4952
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              3⤵
                PID:4172
                • C:\Windows\SysWOW64\schtasks.exe
                  SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  4⤵
                  • Creates scheduled task(s)
                  PID:1964
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:4092
                • C:\Windows\SysWOW64\schtasks.exe
                  SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /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 "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                  PID:448
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:4640
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk2137" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                    PID:932
                    • C:\Windows\SysWOW64\schtasks.exe
                      SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk2137" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      4⤵
                      • Creates scheduled task(s)
                      PID:1488
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk433" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    3⤵
                      PID:4576
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk433" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:2540
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk9620" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                        PID:2844
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk9620" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:2800
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk5750" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        3⤵
                          PID:4160
                          • C:\Windows\SysWOW64\schtasks.exe
                            SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk5750" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                            4⤵
                            • Creates scheduled task(s)
                            PID:4536
                        • C:\Windows\SysWOW64\cmd.exe
                          "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                          3⤵
                            PID:4268
                            • C:\Windows\SysWOW64\chcp.com
                              chcp 1251
                              4⤵
                                PID:1140
                            • C:\Windows\SysWOW64\cmd.exe
                              "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                              3⤵
                                PID:4456
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 1251
                                  4⤵
                                    PID:752
                                • C:\Windows\SysWOW64\cmd.exe
                                  "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                                  3⤵
                                    PID:100
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 1251
                                      4⤵
                                        PID:2892

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • C:\ProgramData\Dllhost\dllhost.exe

                                  Filesize

                                  891KB

                                  MD5

                                  e6bbd28871f858fb2d6af25a043dd48e

                                  SHA1

                                  5cba807bf3bf7bd4e71e4676ea4588e9c4e9bb2d

                                  SHA256

                                  b7ad6e251fd99ed20599f358e5b93f8c8e1a5ef0706c97c1179a64b35e5b2374

                                  SHA512

                                  51cf8b2f8fb9ea49660f0efcbbde222232496a9705bb593f8b8538380b42d2e97dd7176d29a813741d2d48922a80e9416526cdcc7f5473b6159765479a9508b7

                                • C:\ProgramData\Dllhost\dllhost.exe

                                  Filesize

                                  891KB

                                  MD5

                                  e6bbd28871f858fb2d6af25a043dd48e

                                  SHA1

                                  5cba807bf3bf7bd4e71e4676ea4588e9c4e9bb2d

                                  SHA256

                                  b7ad6e251fd99ed20599f358e5b93f8c8e1a5ef0706c97c1179a64b35e5b2374

                                  SHA512

                                  51cf8b2f8fb9ea49660f0efcbbde222232496a9705bb593f8b8538380b42d2e97dd7176d29a813741d2d48922a80e9416526cdcc7f5473b6159765479a9508b7

                                • 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

                                  a096e7f3cb2f3309ef0fc02fcfa5aef6

                                  SHA1

                                  6795c164ce55727472526733caa2b0c705347a12

                                  SHA256

                                  2055ddf25cc8d00b498f3a0fc1a40379545ead9ea961d6400c519b60b54b11e7

                                  SHA512

                                  7e6d33ccbc02792367dab88289faaccd19a4302361eb265eccc153375955d01201eee85ab8451fa805ec9a213db8a5d433551a90df1726cef53d02fe72b41772

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

                                  Filesize

                                  18KB

                                  MD5

                                  5f6189ebe0685fce7ac5705fac66e8ab

                                  SHA1

                                  8edcc9976b93466c7183aab3e306491dddd041ee

                                  SHA256

                                  9505a20c4eb7cb628e5bdfdce051b5732dc16cacb917bb9704c7e9ea71c47db7

                                  SHA512

                                  8052cf4a71083ed9972c89d7fc476363c641f2aaf2646bd4aed0b3395caee5486c3b0d6fa34bcd7a65158afb2d812c5e6f31be748b0c5f4d8ecf321918796c13

                                • memory/1780-165-0x0000000000310000-0x00000000003C0000-memory.dmp

                                  Filesize

                                  704KB

                                • memory/1928-158-0x0000000071080000-0x00000000710CC000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/3880-161-0x0000000071080000-0x00000000710CC000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/4820-141-0x0000000005140000-0x0000000005768000-memory.dmp

                                  Filesize

                                  6.2MB

                                • memory/4820-154-0x0000000007730000-0x0000000007738000-memory.dmp

                                  Filesize

                                  32KB

                                • memory/4820-153-0x0000000007750000-0x000000000776A000-memory.dmp

                                  Filesize

                                  104KB

                                • memory/4820-152-0x00000000075D0000-0x00000000075DE000-memory.dmp

                                  Filesize

                                  56KB

                                • memory/4820-145-0x0000000006620000-0x0000000006652000-memory.dmp

                                  Filesize

                                  200KB

                                • memory/4820-150-0x0000000007400000-0x000000000740A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4820-149-0x00000000073B0000-0x00000000073CA000-memory.dmp

                                  Filesize

                                  104KB

                                • memory/4820-148-0x0000000007A10000-0x000000000808A000-memory.dmp

                                  Filesize

                                  6.5MB

                                • memory/4820-147-0x0000000006600000-0x000000000661E000-memory.dmp

                                  Filesize

                                  120KB

                                • memory/4820-140-0x00000000029B0000-0x00000000029E6000-memory.dmp

                                  Filesize

                                  216KB

                                • memory/4820-146-0x0000000071080000-0x00000000710CC000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/4820-142-0x0000000004FA0000-0x0000000004FC2000-memory.dmp

                                  Filesize

                                  136KB

                                • memory/4820-143-0x0000000005770000-0x00000000057D6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/4820-151-0x0000000007630000-0x00000000076C6000-memory.dmp

                                  Filesize

                                  600KB

                                • memory/4820-144-0x00000000060F0000-0x000000000610E000-memory.dmp

                                  Filesize

                                  120KB

                                • memory/5012-132-0x0000000000A40000-0x0000000000AE8000-memory.dmp

                                  Filesize

                                  672KB

                                • memory/5012-136-0x0000000005770000-0x00000000057D6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/5012-135-0x0000000005530000-0x000000000553A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/5012-134-0x0000000005490000-0x0000000005522000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/5012-133-0x0000000005B00000-0x00000000060A4000-memory.dmp

                                  Filesize

                                  5.6MB