Analysis

  • max time kernel
    150s
  • 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
    07/11/2024, 18:39

General

  • Target
    5b68d93f21d6b07ac727cb0b813615a547cbb929f9e36147f5ce9eeddbde4e98N.exe
  • Size 1.5MB
  • Sample241107-xa22maxbrp
  • SHA256 5b68d93f21d6b07ac727cb0b813615a547cbb929f9e36147f5ce9eeddbde4e98
  • 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

  • rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

  • AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

  • LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB

  • MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q

  • 4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD

  • 15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

  • 1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK

  • ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

  • 3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

  • 3ESHude8zUHksQg1h6hHmzY79BS36L91Yn

  • DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

  • t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

  • stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

  • bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

  • bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

  • bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd

Attributes
  • mutex

    mmn7nnm8na

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

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.

  • Windows security bypass 2 TTPs 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 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 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b68d93f21d6b07ac727cb0b813615a547cbb929f9e36147f5ce9eeddbde4e98N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b68d93f21d6b07ac727cb0b813615a547cbb929f9e36147f5ce9eeddbde4e98N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:872
    • C:\Users\Admin\AppData\Local\Temp\A26A.exe
      "C:\Users\Admin\AppData\Local\Temp\A26A.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Users\Admin\AppData\Local\Temp\127219754.exe
        C:\Users\Admin\AppData\Local\Temp\127219754.exe
        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:4700
        • 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:2648
          • 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:1856
            • 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:3008
          • 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:2000
            • C:\Windows\SysWOW64\sc.exe
              sc stop UsoSvc
              6⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:4640
            • C:\Windows\SysWOW64\sc.exe
              sc stop WaaSMedicSvc
              6⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:1868
            • C:\Windows\SysWOW64\sc.exe
              sc stop wuauserv
              6⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:4420
            • C:\Windows\SysWOW64\sc.exe
              sc stop DoSvc
              6⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:4112
            • C:\Windows\SysWOW64\sc.exe
              sc stop BITS /wait
              6⤵
              • Launches sc.exe
              • System Location Discovery: System Language Discovery
              PID:1688

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        127219754.exe

        • Path C:\Users\Admin\AppData\Local\Temp\127219754.exe
        • Size 83KB
        • SHA256 9eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d
        • MD5 SHA1 SHA512 SSDEEP

        A26A.exe

        • Path C:\Users\Admin\AppData\Local\Temp\A26A.exe
        • Size 9KB
        • SHA256 feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_uasa5kay.v4v.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uasa5kay.v4v.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/3008-35-0x000000006EFC0000-0x000000006F00C000-memory.dmp

        memory/3008-46-0x0000000007640000-0x00000000076E3000-memory.dmp

        memory/3008-20-0x0000000005D80000-0x0000000005DE6000-memory.dmp

        memory/3008-21-0x0000000005DF0000-0x0000000005E56000-memory.dmp

        memory/3008-18-0x0000000005560000-0x0000000005B88000-memory.dmp

        memory/3008-31-0x0000000005E60000-0x00000000061B4000-memory.dmp

        memory/3008-32-0x0000000006440000-0x000000000645E000-memory.dmp

        memory/3008-33-0x0000000006480000-0x00000000064CC000-memory.dmp

        memory/3008-34-0x0000000006A20000-0x0000000006A52000-memory.dmp

        memory/3008-17-0x0000000004E90000-0x0000000004EC6000-memory.dmp

        memory/3008-45-0x0000000007610000-0x000000000762E000-memory.dmp

        memory/3008-19-0x00000000054A0000-0x00000000054C2000-memory.dmp

        memory/3008-47-0x0000000007E20000-0x000000000849A000-memory.dmp

        memory/3008-48-0x0000000007770000-0x000000000778A000-memory.dmp

        memory/3008-49-0x00000000077E0000-0x00000000077EA000-memory.dmp

        memory/3008-50-0x00000000079F0000-0x0000000007A86000-memory.dmp

        memory/3008-51-0x0000000007980000-0x0000000007991000-memory.dmp

        memory/3008-52-0x00000000079B0000-0x00000000079BE000-memory.dmp

        memory/3008-53-0x00000000079C0000-0x00000000079D4000-memory.dmp

        memory/3008-54-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

        memory/3008-55-0x0000000007A90000-0x0000000007A98000-memory.dmp