Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/08/2024, 01:38

General

  • Target
    d281e0a0f1e1073f2d290a7eb1f77bed4c210dbf83a0f4f4e22073f50faa843f.exe
  • Size 92KB
  • Sample240809-b2hleaxhrh
  • SHA256 d281e0a0f1e1073f2d290a7eb1f77bed4c210dbf83a0f4f4e22073f50faa843f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • phorphiex

C2
  • http://185.215.113.66/

  • http://91.202.233.141/

Wallets
  • 0xCa90599132C4D88907Bd8E046540284aa468a035

  • TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

  • qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

  • XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

  • LLeT2zkStY3cvxMBFhoWXkG5VuZPoezduv

  • rwc4LVd9ABpULQ1CuCpDkgX2xVB1fUijyb

  • 4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK

  • 15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

  • 17hgMFyLDwMjxWqw5GhijhnPdJDyFDqecY

  • ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

  • 3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

  • 3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3

  • DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

  • t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

  • stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

  • bnb1epx67ne4vckqmaj4gwke8m322f4yjr6eh52wqw

  • bc1qmpkehfffkr6phuklsksnd7nhgx0369sxu772m3

  • bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

  • GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3

Attributes
  • mutex

    x88767657x

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • 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 4 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • xmrig

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

  • XMRig Miner payload 10 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Downloads MZ/PE file
  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 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 13 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 39 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:3392
      • C:\Users\Admin\AppData\Local\Temp\d281e0a0f1e1073f2d290a7eb1f77bed4c210dbf83a0f4f4e22073f50faa843f.exe
        "C:\Users\Admin\AppData\Local\Temp\d281e0a0f1e1073f2d290a7eb1f77bed4c210dbf83a0f4f4e22073f50faa843f.exe"
        2⤵
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4192
        • C:\Windows\sysmysldrv.exe
          C:\Windows\sysmysldrv.exe
          3⤵
          • 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:2368
          • 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"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1252
            • 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"
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3124
          • 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
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5012
            • C:\Windows\SysWOW64\sc.exe
              sc stop UsoSvc
              5⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:2428
            • C:\Windows\SysWOW64\sc.exe
              sc stop WaaSMedicSvc
              5⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:116
            • C:\Windows\SysWOW64\sc.exe
              sc stop wuauserv
              5⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:4632
            • C:\Windows\SysWOW64\sc.exe
              sc stop DoSvc
              5⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:5024
            • C:\Windows\SysWOW64\sc.exe
              sc stop BITS
              5⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:4900
          • C:\Users\Admin\AppData\Local\Temp\1309712204.exe
            C:\Users\Admin\AppData\Local\Temp\1309712204.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1480
          • C:\Users\Admin\AppData\Local\Temp\57613317.exe
            C:\Users\Admin\AppData\Local\Temp\57613317.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:4340
          • C:\Users\Admin\AppData\Local\Temp\307778766.exe
            C:\Users\Admin\AppData\Local\Temp\307778766.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3296
            • C:\Users\Admin\AppData\Local\Temp\2876034757.exe
              C:\Users\Admin\AppData\Local\Temp\2876034757.exe
              5⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:1756
      • 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⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1524
      • C:\Windows\System32\schtasks.exe
        C:\Windows\System32\schtasks.exe /run /tn "Windows Upgrade Manager"
        2⤵
          PID:3856
        • 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⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          PID:4828
        • C:\Windows\System32\notepad.exe
          C:\Windows\System32\notepad.exe
          2⤵
            PID:4304
        • 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:3180

        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 18KB
              • SHA256 4bd19cf7e44ac5f357b23bf245a5405a5be80e068d29cf0b18f4d2abdadd308c
              • MD5 SHA1 SHA512 SSDEEP

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 342ce7c39bf9992d31d4b61ef138b2b084c96c74736ed00bb19aae49be16ca02
              • MD5 SHA1 SHA512

              1309712204.exe

              • Path C:\Users\Admin\AppData\Local\Temp\1309712204.exe
              • Size 7KB
              • SHA256 7b7d433c6c204ed3bcd1ea74106592edfa1a30b6ef7bbc3ed21efcbadc51e526
              • MD5 SHA1 SHA512 SSDEEP

              2876034757.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2876034757.exe
              • Size 5.4MB
              • SHA256 dd12cb27b3867341bf6ca48715756500d3ec56c19b21bb1c1290806aa74cb493
              • MD5 SHA1 SHA512 SSDEEP

              307778766.exe

              • Path C:\Users\Admin\AppData\Local\Temp\307778766.exe
              • Size 10KB
              • SHA256 5016e413b0c563efc920165e7235c9f2706808877668bd297b41435acc7aade4
              • MD5 SHA1 SHA512 SSDEEP

              __PSScriptPolicyTest_kyaph5la.hln.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kyaph5la.hln.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              sysmysldrv.exe

              • Path C:\Windows\sysmysldrv.exe
              • Size 92KB
              • SHA256 d281e0a0f1e1073f2d290a7eb1f77bed4c210dbf83a0f4f4e22073f50faa843f
              • MD5 SHA1 SHA512 SSDEEP

              memory/1524-71-0x0000023F71E80000-0x0000023F71EA2000-memory.dmp

              memory/1756-86-0x00007FF7B69D0000-0x00007FF7B6F46000-memory.dmp

              memory/3124-23-0x000000006F7F0000-0x000000006F83C000-memory.dmp

              memory/3124-8-0x0000000005BF0000-0x0000000005C56000-memory.dmp

              memory/3124-33-0x0000000007520000-0x000000000753E000-memory.dmp

              memory/3124-34-0x0000000007550000-0x00000000075F3000-memory.dmp

              memory/3124-35-0x0000000007D30000-0x00000000083AA000-memory.dmp

              memory/3124-36-0x0000000007680000-0x000000000769A000-memory.dmp

              memory/3124-37-0x0000000007700000-0x000000000770A000-memory.dmp

              memory/3124-38-0x0000000007900000-0x0000000007996000-memory.dmp

              memory/3124-39-0x0000000007890000-0x00000000078A1000-memory.dmp

              memory/3124-40-0x00000000078C0000-0x00000000078CE000-memory.dmp

              memory/3124-41-0x00000000078D0000-0x00000000078E4000-memory.dmp

              memory/3124-42-0x00000000079C0000-0x00000000079DA000-memory.dmp

              memory/3124-43-0x00000000079A0000-0x00000000079A8000-memory.dmp

              memory/3124-21-0x0000000006390000-0x00000000063DC000-memory.dmp

              memory/3124-20-0x0000000006350000-0x000000000636E000-memory.dmp

              memory/3124-19-0x0000000005E50000-0x00000000061A4000-memory.dmp

              memory/3124-9-0x0000000005C60000-0x0000000005CC6000-memory.dmp

              memory/3124-22-0x0000000006930000-0x0000000006962000-memory.dmp

              memory/3124-7-0x0000000005360000-0x0000000005382000-memory.dmp

              memory/3124-6-0x00000000054C0000-0x0000000005AE8000-memory.dmp

              memory/3124-5-0x0000000004D00000-0x0000000004D36000-memory.dmp

              memory/3180-102-0x00007FF62C650000-0x00007FF62CBC6000-memory.dmp

              memory/4304-103-0x000001B378440000-0x000001B378460000-memory.dmp

              memory/4304-104-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-105-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-107-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-108-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-109-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-110-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-111-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-112-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-114-0x00007FF607730000-0x00007FF607F1F000-memory.dmp

              memory/4304-115-0x00007FF607730000-0x00007FF607F1F000-memory.dmp