Analysis

  • max time kernel
    148s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 00:31

General

  • Target

    8258474994caefedacdf4db86895f38f_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    8258474994caefedacdf4db86895f38f

  • SHA1

    56b035ce1839a4b0fc232f3b0c8988ee46e594ff

  • SHA256

    bc5c20d0283855bf595e7755a866571e4bb5b6f07e08f7cd6c31426f95ce5975

  • SHA512

    2b1dcb52fc8ec61abc0602a9de279343ae8fe8c0285c11081609464b38ee8506f2e422843a98e5a33bdff397b66b64c4619f75e84255e9291db06d22e5ba26c0

  • SSDEEP

    12288:AOHHDNl3w8UU1cj+PbG+u4QTmGSiIfdCLRIkO7UYliuRCxESfmupqzfHu//ZDAm3:b8McFckefIBIpyItOo4z8VH

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 10 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 3 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • 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.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3540
      • C:\Users\Admin\AppData\Local\Temp\8258474994caefedacdf4db86895f38f_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\8258474994caefedacdf4db86895f38f_JaffaCakes118.exe"
        2⤵
        • Drops file in Drivers directory
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2000
        • C:\Users\Admin\AppData\Local\Temp\PerX Injector.exe
          "C:\Users\Admin\AppData\Local\Temp\PerX Injector.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4472
          • C:\Users\Admin\AppData\Local\Temp\PerX Injector.exe
            "C:\Users\Admin\AppData\Local\Temp\PerX Injector.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:3536
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          3⤵
            PID:2192
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            3⤵
            • Adds policy Run key to start application
            • Boot or Logon Autostart Execution: Active Setup
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1816
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1812
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
                5⤵
                • Modifies firewall policy service
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:1016
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2016
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f
                5⤵
                • Modifies firewall policy service
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:4208
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:408
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
                5⤵
                • Modifies firewall policy service
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:4300
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\KAFNQ8N3DS.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\KAFNQ8N3DS.exe:*:Enabled:Windows Messanger" /f
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2516
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\KAFNQ8N3DS.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\KAFNQ8N3DS.exe:*:Enabled:Windows Messanger" /f
                5⤵
                • Modifies firewall policy service
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:4944
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DNS.bat" "
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2916
            • C:\Windows\SysWOW64\ipconfig.exe
              ipconfig /flushdnsipconfig/releaseipconfig/renew
              4⤵
              • System Location Discovery: System Language Discovery
              • Gathers network information
              PID:2036

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\DNS.bat

              Filesize

              47B

              MD5

              4b403bd7ff6fe021fcf3ecdd2c029f87

              SHA1

              890642fc02dbfffd5d3aef0ec652fa636a48c3ee

              SHA256

              267c9197388ab6b34c7516e728a3529df2b7aab5029588ffb47540bbe651f654

              SHA512

              3bdef29cfeab451d45182420bd179f9450a0da5c842992260a420728e212635f90cc1f394687c8ac852ccd8caf529e9bdb4aff24e2d07f6705594931b3ef5e6d

            • C:\Users\Admin\AppData\Local\Temp\PerX Injector.exe

              Filesize

              116KB

              MD5

              e95baf90be475ddd25a5280804f8e586

              SHA1

              dee6c7c7222bd10cbbed112ce0014039b98a504a

              SHA256

              c19e7d1e963a4216a82cc1221716212394964a3ed03864c403d5270eba5ce015

              SHA512

              2b45d86f7c68cea4b2b0c4257bdcd97f7f64e35da4f0fc00a3b1cc86c6fd370ae6eb7ff051dea15badefb2ebacd6e334052064c6063c2d8f4e55066c4f9b96f6

            • C:\Windows\System32\drivers\etc\hosts

              Filesize

              1KB

              MD5

              353eb148f1548b7cfe6535d466aec419

              SHA1

              eb6debca23bd9f5de0b48b50ce80cf508f94d05b

              SHA256

              935c3c03427de65a23891c75db33d3e6c64697a60327d416adf30b31a68c52eb

              SHA512

              eec53e6c93a5294ab41bc981b0f9c1cfe043701fe0bbfc944953dc5c41fa3265db3c4a867d8ce7075a4cf7e3ea3b23af7968c4cf0b82d920e929d2e94a37b267

            • memory/1816-72-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-18-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-108-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-49-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-95-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-92-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-50-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-85-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-82-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-70-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-16-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-67-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-64-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-78-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1816-75-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/2000-56-0x00000000752E0000-0x0000000075891000-memory.dmp

              Filesize

              5.7MB

            • memory/2000-1-0x00000000752E0000-0x0000000075891000-memory.dmp

              Filesize

              5.7MB

            • memory/2000-0-0x00000000752E2000-0x00000000752E3000-memory.dmp

              Filesize

              4KB

            • memory/3536-47-0x0000000000400000-0x00000000004083A0-memory.dmp

              Filesize

              32KB

            • memory/3536-42-0x0000000000400000-0x0000000000409000-memory.dmp

              Filesize

              36KB

            • memory/3536-48-0x0000000000400000-0x0000000000409000-memory.dmp

              Filesize

              36KB

            • memory/3536-45-0x0000000000400000-0x0000000000409000-memory.dmp

              Filesize

              36KB

            • memory/3540-59-0x000000007FFD0000-0x000000007FFD1000-memory.dmp

              Filesize

              4KB

            • memory/3540-58-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

              Filesize

              28KB

            • memory/4472-13-0x0000000000400000-0x0000000000454000-memory.dmp

              Filesize

              336KB

            • memory/4472-52-0x0000000000400000-0x0000000000454000-memory.dmp

              Filesize

              336KB