Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/05/2024, 01:20

General

  • Target
    66944b456b33438cbf93d112d973112903f57dc16bf4c069e968562fa8f01b54.exe
  • Size 104KB
  • Sample240519-bqd4vaba33
  • SHA256 66944b456b33438cbf93d112d973112903f57dc16bf4c069e968562fa8f01b54
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies security service 2 TTPs 2 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
  • Windows security bypass 2 TTPs 18 IoCs
  • xmrig

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

  • XMRig Miner payload 10 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 23 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 21 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3508
      • C:\Users\Admin\AppData\Local\Temp\66944b456b33438cbf93d112d973112903f57dc16bf4c069e968562fa8f01b54.exe
        "C:\Users\Admin\AppData\Local\Temp\66944b456b33438cbf93d112d973112903f57dc16bf4c069e968562fa8f01b54.exe"
        2⤵
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:3156
        • C:\Windows\sysblardsv.exe
          C:\Windows\sysblardsv.exe
          3⤵
          • Modifies security service
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Suspicious use of WriteProcessMemory
          PID:2576
          • C:\Users\Admin\AppData\Local\Temp\1162415338.exe
            C:\Users\Admin\AppData\Local\Temp\1162415338.exe
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in Windows directory
            • Suspicious use of WriteProcessMemory
            PID:4684
            • C:\Windows\syslmgrsvc.exe
              C:\Windows\syslmgrsvc.exe
              5⤵
              • Modifies security service
              • Windows security bypass
              • Executes dropped EXE
              • Windows security modification
              • Suspicious behavior: SetClipboardViewer
              • Suspicious use of WriteProcessMemory
              PID:1732
              • C:\Users\Admin\AppData\Local\Temp\1591827520.exe
                C:\Users\Admin\AppData\Local\Temp\1591827520.exe
                6⤵
                • Executes dropped EXE
                PID:3644
              • C:\Users\Admin\AppData\Local\Temp\1416519143.exe
                C:\Users\Admin\AppData\Local\Temp\1416519143.exe
                6⤵
                • Executes dropped EXE
                PID:4980
              • C:\Users\Admin\AppData\Local\Temp\1234910357.exe
                C:\Users\Admin\AppData\Local\Temp\1234910357.exe
                6⤵
                • Executes dropped EXE
                PID:3840
              • C:\Users\Admin\AppData\Local\Temp\215121366.exe
                C:\Users\Admin\AppData\Local\Temp\215121366.exe
                6⤵
                • Executes dropped EXE
                PID:4188
              • C:\Users\Admin\AppData\Local\Temp\1417625247.exe
                C:\Users\Admin\AppData\Local\Temp\1417625247.exe
                6⤵
                • Executes dropped EXE
                PID:1400
              • C:\Users\Admin\AppData\Local\Temp\974716511.exe
                C:\Users\Admin\AppData\Local\Temp\974716511.exe
                6⤵
                • Executes dropped EXE
                PID:1384
          • C:\Users\Admin\AppData\Local\Temp\98716960.exe
            C:\Users\Admin\AppData\Local\Temp\98716960.exe
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in Windows directory
            • Suspicious use of WriteProcessMemory
            PID:3268
            • C:\Windows\winqlsdrvcs.exe
              C:\Windows\winqlsdrvcs.exe
              5⤵
              • Windows security bypass
              • Executes dropped EXE
              • Windows security modification
              • Suspicious use of WriteProcessMemory
              PID:4508
              • C:\Users\Admin\AppData\Local\Temp\1657721102.exe
                C:\Users\Admin\AppData\Local\Temp\1657721102.exe
                6⤵
                • Executes dropped EXE
                PID:2424
              • C:\Users\Admin\AppData\Local\Temp\3387412163.exe
                C:\Users\Admin\AppData\Local\Temp\3387412163.exe
                6⤵
                • Executes dropped EXE
                PID:2384
              • C:\Users\Admin\AppData\Local\Temp\1840435992.exe
                C:\Users\Admin\AppData\Local\Temp\1840435992.exe
                6⤵
                • Executes dropped EXE
                PID:3656
          • C:\Users\Admin\AppData\Local\Temp\3007530939.exe
            C:\Users\Admin\AppData\Local\Temp\3007530939.exe
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4360
            • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
              "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
              5⤵
              • Executes dropped EXE
              PID:4292
            • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
              "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
              5⤵
              • Executes dropped EXE
              PID:1152
            • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
              "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
              5⤵
              • Executes dropped EXE
              PID:2420
          • C:\Users\Admin\AppData\Local\Temp\1460522000.exe
            C:\Users\Admin\AppData\Local\Temp\1460522000.exe
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3756
            • C:\Users\Admin\AppData\Local\Temp\1520115174.exe
              C:\Users\Admin\AppData\Local\Temp\1520115174.exe
              5⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:1612
          • C:\Users\Admin\AppData\Local\Temp\2376713009.exe
            C:\Users\Admin\AppData\Local\Temp\2376713009.exe
            4⤵
            • Executes dropped EXE
            PID:4896
          • C:\Users\Admin\AppData\Local\Temp\82974070.exe
            C:\Users\Admin\AppData\Local\Temp\82974070.exe
            4⤵
            • Executes dropped EXE
            PID:4088
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#llzqlmcx#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Windows Upgrade Manager' /tr '''C:\Users\Admin\Windows Upgrade\wupgrdsv.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Upgrade\wupgrdsv.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Windows Upgrade Manager' -RunLevel 'Highest' -Force; }
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3612
      • C:\Windows\System32\schtasks.exe
        C:\Windows\System32\schtasks.exe /run /tn "Windows Upgrade Manager"
        2⤵
          PID:1920
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#llzqlmcx#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Windows Upgrade Manager' /tr '''C:\Users\Admin\Windows Upgrade\wupgrdsv.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Upgrade\wupgrdsv.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Windows Upgrade Manager' -RunLevel 'Highest' -Force; }
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4812
        • C:\Windows\System32\notepad.exe
          C:\Windows\System32\notepad.exe
          2⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:1692
      • C:\Users\Admin\Windows Upgrade\wupgrdsv.exe
        "C:\Users\Admin\Windows Upgrade\wupgrdsv.exe"
        1⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2336

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            powershell.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
            • Size 3KB
            • SHA256 dbd4136bc342e3e92902ec3a30d165452c82997a7ae24ac90775e42d88959e6b
            • MD5 SHA1 SHA512

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 1KB
            • SHA256 608cc22e117bf5d1f2b986d629b9bdd3d5574922a14d83e376ee8da00f2baa7f
            • MD5 SHA1 SHA512

            1162415338.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1162415338.exe
            • Size 93KB
            • SHA256 4b4e596641d0dd9eece8a24556fd1246056cbc315a79675a7400927858bbd7c2
            • MD5 SHA1 SHA512 SSDEEP

            1234910357.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1234910357.exe
            • Size 10KB
            • SHA256 1e337ed3d9d65d6f6cb626dc086166fcae0a7dc0f81ee8163444856a19973408
            • MD5 SHA1 SHA512 SSDEEP

            1416519143.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1416519143.exe
            • Size 14KB
            • SHA256 b3395083c95e4e25611cb0e78be88790ea95b6e09f6d23298785fc4a0c08ce15
            • MD5 SHA1 SHA512 SSDEEP

            1460522000.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1460522000.exe
            • Size 10KB
            • SHA256 e5d12658a690c62af7d4fc7b26735affc7210e3bfb6b2241de1bf90aebdc0717
            • MD5 SHA1 SHA512 SSDEEP

            1520115174.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1520115174.exe
            • Size 5.4MB
            • SHA256 dd12cb27b3867341bf6ca48715756500d3ec56c19b21bb1c1290806aa74cb493
            • MD5 SHA1 SHA512 SSDEEP

            1591827520.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1591827520.exe
            • Size 93KB
            • SHA256 7c9759a8583dc85e94b2314931f713d665c8096c224cab2e162dc5045e26a3aa
            • MD5 SHA1 SHA512 SSDEEP

            1657721102.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1657721102.exe
            • Size 8KB
            • SHA256 17399263a05a9144c1571e8ef88175fd08c61a38e3fcb3a955279d4a2bb9a919
            • MD5 SHA1 SHA512 SSDEEP

            1840435992.exe

            • Path C:\Users\Admin\AppData\Local\Temp\1840435992.exe
            • Size 8KB
            • SHA256 8a169cf165f635ecb6c55cacecb2c202c5fc6ef5fa82ec9cdb7d4b0300f35293
            • MD5 SHA1 SHA512 SSDEEP

            215121366.exe

            • Path C:\Users\Admin\AppData\Local\Temp\215121366.exe
            • Size 10KB
            • SHA256 8e45adf4b63d076d7cbf1066ec2b6168ec03ac78ce80b5531891fb380a90b4c1
            • MD5 SHA1 SHA512 SSDEEP

            2376713009.exe

            • Path C:\Users\Admin\AppData\Local\Temp\2376713009.exe
            • Size 8KB
            • SHA256 dee9dca027009b7d2885ace7b968d2e9505a41b34756b08343338f8ef259e9be
            • MD5 SHA1 SHA512 SSDEEP

            3007530939.exe

            • Path C:\Users\Admin\AppData\Local\Temp\3007530939.exe
            • Size 10KB
            • SHA256 e8a0c46342abd882318dbfdb17b7d3cb93d7138564878a15c5b91229ed81689c
            • MD5 SHA1 SHA512 SSDEEP

            82974070.exe

            • Path C:\Users\Admin\AppData\Local\Temp\82974070.exe
            • Size 11KB
            • SHA256 e5162fa594811f0f01fc76f4acbd9fe99b2265df9cfcbc346023f28775c19f1e
            • MD5 SHA1 SHA512 SSDEEP

            98716960.exe

            • Path C:\Users\Admin\AppData\Local\Temp\98716960.exe
            • Size 14KB
            • SHA256 483142a79ce1fce6474da5dcfeea48104eda46a960c7eb9b9581d555dd6cfc77
            • MD5 SHA1 SHA512 SSDEEP

            Windows Security Upgrade Service.exe

            • Path C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
            • Size 20KB
            • SHA256 22be0689856c5e26d3b742120386b3895a3749e9a2e76d3b356eed2ea2df5f94
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_w2uqejkn.atn.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w2uqejkn.atn.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            tbtnds.dat

            • Path C:\Users\Admin\tbtnds.dat
            • Size 4KB
            • SHA256 2a0bfecaaf3c5e400589303ae5442552de249f91a6bd72b191c954801885b1dc
            • MD5 SHA1 SHA512

            tbtnds.dat

            • Path C:\Users\Admin\tbtnds.dat
            • Size 4KB
            • SHA256 622f9b85705b78e7764c47a196adb62d6a8fa7e118e812425e40ef35dffa2ac5
            • MD5 SHA1 SHA512

            sysblardsv.exe

            • Path C:\Windows\sysblardsv.exe
            • Size 104KB
            • SHA256 66944b456b33438cbf93d112d973112903f57dc16bf4c069e968562fa8f01b54
            • MD5 SHA1 SHA512 SSDEEP

            memory/1612-128-0x00007FF658CC0000-0x00007FF659236000-memory.dmp

            memory/1692-165-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-163-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-164-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-154-0x0000018B1BA30000-0x0000018B1BA50000-memory.dmp

            memory/1692-166-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-169-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-172-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-173-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-174-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/1692-175-0x00007FF7CC2E0000-0x00007FF7CCACF000-memory.dmp

            memory/2336-153-0x00007FF6D78F0000-0x00007FF6D7E66000-memory.dmp

            memory/3612-114-0x0000021C59EF0000-0x0000021C59F12000-memory.dmp