Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-04-2023 19:03

General

  • Target

    SystemUpdate.exe

  • Size

    62KB

  • MD5

    09a29f3b529c5e9ab25a47973bb0900a

  • SHA1

    b8dce851d01dbe0335f11fa8449b52a2270776e6

  • SHA256

    33035a718f5445742b82707f0ba6aff80337cac1e89b6b3b8b51177c7f9f578a

  • SHA512

    35e92a26fc392b15eb7fd78ca1f6a6c08afe42ed535fd020237215d7f4db0f66fa0676eb70d646f8790c9724c30c605a99b33cf6a6c84c3de78f6061f1a48efb

  • SSDEEP

    1536:s2JbaiIZApuLzOgkx9MbEze4g3ViceSITKdU:dbahZApuL1kx9MbEze4g3ViceYO

Score
10/10

Malware Config

Signatures

  • XMRig Miner payload 4 IoCs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\SystemData"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2404
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:564
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3692
        • 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:1976
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\SystemData"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4520
      • 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:2728
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
            PID:2880
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:764
          • 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:1336
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:3300
          • 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:4464
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /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 "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4620
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:3984
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
              PID:2384
              • C:\Windows\SysWOW64\schtasks.exe
                SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                4⤵
                • Creates scheduled task(s)
                PID:2240
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk3456" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              3⤵
                PID:2300
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk5928" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                  PID:1144
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk5928" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:4776
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk1607" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                    PID:4944
                    • C:\Windows\SysWOW64\schtasks.exe
                      SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk1607" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      4⤵
                      • Creates scheduled task(s)
                      PID:2252
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk5844" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    3⤵
                      PID:4612
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk5844" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:5064
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                        PID:2168
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:4200
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        3⤵
                          PID:4984
                          • C:\Windows\SysWOW64\schtasks.exe
                            SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                            4⤵
                            • Creates scheduled task(s)
                            PID:2092
                        • 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:1588
                          • C:\Windows\SysWOW64\schtasks.exe
                            SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                            4⤵
                            • Creates scheduled task(s)
                            PID:2512
                        • C:\Windows\SysWOW64\cmd.exe
                          "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe -c config.json
                          3⤵
                            PID:3220
                            • C:\Windows\SysWOW64\chcp.com
                              chcp 1251
                              4⤵
                                PID:4324
                            • C:\Windows\SysWOW64\cmd.exe
                              "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe -c config.json
                              3⤵
                                PID:3872
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 1251
                                  4⤵
                                    PID:4652
                                  • C:\ProgramData\Dllhost\winlogson.exe
                                    C:\ProgramData\Dllhost\winlogson.exe -c config.json
                                    4⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of FindShellTrayWindow
                                    PID:1468

                            Network

                            MITRE ATT&CK Matrix ATT&CK v6

                            Execution

                            Scheduled Task

                            1
                            T1053

                            Persistence

                            Registry Run Keys / Startup Folder

                            1
                            T1060

                            Scheduled Task

                            1
                            T1053

                            Privilege Escalation

                            Scheduled Task

                            1
                            T1053

                            Defense Evasion

                            Modify Registry

                            1
                            T1112

                            Command and Control

                            Web Service

                            1
                            T1102

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\ProgramData\Dllhost\dllhost.exe
                              Filesize

                              24KB

                              MD5

                              acf4152befc5768daaf11c92fd3899b0

                              SHA1

                              f8a210a2a00876f15008f275063988e5cf534722

                              SHA256

                              64c80419e5ca81a5bfee32e223b5676aac6d47c4aa8168ceae6247f766c291d6

                              SHA512

                              15bdde54be38e7ed0828f238bd2f0bcdc1a73671118225b731760fe4beb568a72570bad9b1a97a237291b394f1d3155aa6fcac209f6ae0a3db6608e0036c56d1

                            • C:\ProgramData\Dllhost\dllhost.exe
                              Filesize

                              24KB

                              MD5

                              acf4152befc5768daaf11c92fd3899b0

                              SHA1

                              f8a210a2a00876f15008f275063988e5cf534722

                              SHA256

                              64c80419e5ca81a5bfee32e223b5676aac6d47c4aa8168ceae6247f766c291d6

                              SHA512

                              15bdde54be38e7ed0828f238bd2f0bcdc1a73671118225b731760fe4beb568a72570bad9b1a97a237291b394f1d3155aa6fcac209f6ae0a3db6608e0036c56d1

                            • C:\ProgramData\Dllhost\winlogson.exe
                              Filesize

                              5.2MB

                              MD5

                              6c454e10bbea489cfc96253fe55ec282

                              SHA1

                              22fd5c79495ad06036635eff26a31c76d859e3b7

                              SHA256

                              a12c34fef1d6475d99aa9af2e8bf1fd55bca83982a0ee2a9131ffd9fd15cb2a7

                              SHA512

                              81f45ebeffc0205e4132db3f29584e267f986dc8b5e02f3d444a8470e24e073259cb2075af8a832aa09da1dc20b0609e2e4b3ec68284232ce86547e6bf794562

                            • C:\ProgramData\Dllhost\winlogson.exe
                              Filesize

                              5.2MB

                              MD5

                              6c454e10bbea489cfc96253fe55ec282

                              SHA1

                              22fd5c79495ad06036635eff26a31c76d859e3b7

                              SHA256

                              a12c34fef1d6475d99aa9af2e8bf1fd55bca83982a0ee2a9131ffd9fd15cb2a7

                              SHA512

                              81f45ebeffc0205e4132db3f29584e267f986dc8b5e02f3d444a8470e24e073259cb2075af8a832aa09da1dc20b0609e2e4b3ec68284232ce86547e6bf794562

                            • C:\ProgramData\SystemFiles\config.json
                              Filesize

                              310B

                              MD5

                              ed14dd820f7a202af04496de4b86cedd

                              SHA1

                              0b9440d08060f4d45fbb6f35c8dbdc60f135fd7f

                              SHA256

                              0d09f312bb2722572c6efe16c989a9cd52fb54d2f5faf04a05ddb88e64e0f4ef

                              SHA512

                              002749f33f789aed6a27594fef7259bfe9dcd36b84433e7f1be9e173217dfa3adf2180b7d0623fc10a1e1466c7002532884f45784c4c6652d504eefadc6d8482

                            • C:\ProgramData\SystemFiles\sys_rh.bin
                              Filesize

                              1KB

                              MD5

                              9bc83276af97842def832a8e4a57ff89

                              SHA1

                              f9412e836938d2e67b1681ef562955218568bd74

                              SHA256

                              33f0be926c68f749a4fbede88a55ee546e00dd9041ec762a6d491d30b2286492

                              SHA512

                              161c14dcc27cd66ee2c77dc959308a7c5aa1d94da356cd663cf93e4aa47b3eb54e1f799f9e4f202bc9fea2af84043899ce829954e85f50deb320a7ce9ec3d9ac

                            • 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

                              c216baebaa56c5a909a4a87527e5f1e6

                              SHA1

                              583f2cfe75498462f2d671dee1c4bf92c1bcbee1

                              SHA256

                              16b85a713bd33384ea6b738e482f9d41ac17b1c907fa28fab024e346fce01071

                              SHA512

                              bfdcea23ea62baa15c8d5aa871af0c5dcd663b80e7de12f3d6d8a4207472ffcea076e3e640411f115bc8f02b2e003d9f2efab5ed1b9020042cbcf1d79e2ab969

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

                              18KB

                              MD5

                              c0bf5f61663d77e252aa977b7be14e43

                              SHA1

                              1402c2b557b3a5e14620806e176b4016b68f521d

                              SHA256

                              d304a74b1df01749a427293ab0da87d55c37b86af5e5b1784fb68d8695765b5a

                              SHA512

                              fe954bcdf1be6a41bb46d6ef696c2f37e99d98ac023b37da1b13d59e8ee9d2088e82d5b5483dbb81a65ec4a42cb537bfc7e090c099192266833592688f40dab5

                            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ulcrb52e.tk5.ps1
                              Filesize

                              60B

                              MD5

                              d17fe0a3f47be24a6453e9ef58c94641

                              SHA1

                              6ab83620379fc69f80c0242105ddffd7d98d5d9d

                              SHA256

                              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                              SHA512

                              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                            • memory/1468-249-0x000001AC4D530000-0x000001AC4D550000-memory.dmp
                              Filesize

                              128KB

                            • memory/1468-253-0x000001AC4EF30000-0x000001AC4EF50000-memory.dmp
                              Filesize

                              128KB

                            • memory/1468-252-0x000001AC4EF30000-0x000001AC4EF50000-memory.dmp
                              Filesize

                              128KB

                            • memory/1468-251-0x000001AC4EEF0000-0x000001AC4EF30000-memory.dmp
                              Filesize

                              256KB

                            • memory/1976-207-0x000000007F2E0000-0x000000007F2F0000-memory.dmp
                              Filesize

                              64KB

                            • memory/1976-206-0x0000000004850000-0x0000000004860000-memory.dmp
                              Filesize

                              64KB

                            • memory/1976-196-0x00000000701C0000-0x000000007020C000-memory.dmp
                              Filesize

                              304KB

                            • memory/1976-195-0x0000000004850000-0x0000000004860000-memory.dmp
                              Filesize

                              64KB

                            • memory/2692-135-0x000000000A770000-0x000000000A802000-memory.dmp
                              Filesize

                              584KB

                            • memory/2692-136-0x00000000050C0000-0x00000000050D0000-memory.dmp
                              Filesize

                              64KB

                            • memory/2692-137-0x000000000A900000-0x000000000A90A000-memory.dmp
                              Filesize

                              40KB

                            • memory/2692-138-0x000000000BD90000-0x000000000BDF6000-memory.dmp
                              Filesize

                              408KB

                            • memory/2692-134-0x000000000AB00000-0x000000000B0A4000-memory.dmp
                              Filesize

                              5.6MB

                            • memory/2692-133-0x0000000000630000-0x0000000000646000-memory.dmp
                              Filesize

                              88KB

                            • memory/2692-194-0x00000000050C0000-0x00000000050D0000-memory.dmp
                              Filesize

                              64KB

                            • memory/2728-237-0x00000000001D0000-0x00000000001DC000-memory.dmp
                              Filesize

                              48KB

                            • memory/2728-238-0x0000000004CE0000-0x0000000004CF0000-memory.dmp
                              Filesize

                              64KB

                            • memory/2728-242-0x0000000004CE0000-0x0000000004CF0000-memory.dmp
                              Filesize

                              64KB

                            • memory/3692-174-0x0000000007850000-0x000000000786A000-memory.dmp
                              Filesize

                              104KB

                            • memory/3692-180-0x0000000007AB0000-0x0000000007AB8000-memory.dmp
                              Filesize

                              32KB

                            • memory/3692-176-0x0000000007AD0000-0x0000000007B66000-memory.dmp
                              Filesize

                              600KB

                            • memory/3692-175-0x00000000078A0000-0x00000000078AA000-memory.dmp
                              Filesize

                              40KB

                            • memory/3692-140-0x0000000005680000-0x0000000005CA8000-memory.dmp
                              Filesize

                              6.2MB

                            • memory/3692-172-0x0000000007EB0000-0x000000000852A000-memory.dmp
                              Filesize

                              6.5MB

                            • memory/3692-143-0x0000000005480000-0x00000000054A2000-memory.dmp
                              Filesize

                              136KB

                            • memory/3692-139-0x0000000004F90000-0x0000000004FC6000-memory.dmp
                              Filesize

                              216KB

                            • memory/3692-154-0x0000000006520000-0x000000000653E000-memory.dmp
                              Filesize

                              120KB

                            • memory/3692-155-0x0000000006AE0000-0x0000000006B12000-memory.dmp
                              Filesize

                              200KB

                            • memory/3692-142-0x0000000005040000-0x0000000005050000-memory.dmp
                              Filesize

                              64KB

                            • memory/3692-144-0x0000000005DB0000-0x0000000005E16000-memory.dmp
                              Filesize

                              408KB

                            • memory/3692-179-0x0000000007B70000-0x0000000007B8A000-memory.dmp
                              Filesize

                              104KB

                            • memory/3692-141-0x0000000005040000-0x0000000005050000-memory.dmp
                              Filesize

                              64KB

                            • memory/3692-168-0x000000007F110000-0x000000007F120000-memory.dmp
                              Filesize

                              64KB

                            • memory/3692-167-0x0000000005040000-0x0000000005050000-memory.dmp
                              Filesize

                              64KB

                            • memory/3692-178-0x0000000007A70000-0x0000000007A7E000-memory.dmp
                              Filesize

                              56KB

                            • memory/3692-166-0x0000000006AC0000-0x0000000006ADE000-memory.dmp
                              Filesize

                              120KB

                            • memory/3692-156-0x00000000701C0000-0x000000007020C000-memory.dmp
                              Filesize

                              304KB

                            • memory/4520-231-0x0000000004F60000-0x0000000004F70000-memory.dmp
                              Filesize

                              64KB

                            • memory/4520-221-0x00000000701C0000-0x000000007020C000-memory.dmp
                              Filesize

                              304KB

                            • memory/4520-220-0x0000000004F60000-0x0000000004F70000-memory.dmp
                              Filesize

                              64KB

                            • memory/4520-219-0x0000000004F60000-0x0000000004F70000-memory.dmp
                              Filesize

                              64KB

                            • memory/4520-232-0x000000007F760000-0x000000007F770000-memory.dmp
                              Filesize

                              64KB