Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/07/2024, 19:52

General

  • Target
    3a819e1ce4c18ecce8115195043a0c50_JaffaCakes118.exe
  • Size 194KB
  • Sample240711-ylldpateqd
  • SHA256 3e97b2fc541b3a23e2fb612f7b272a9619b25cd446e288bbb0a4c94944712513
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xtremerat

C2
  • wolfwolf3007.no-ip.org

Signatures

  • Detect XtremeRAT payload 4 IoCs
  • Modifies firewall policy service 3 TTPs 10 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • 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.

  • 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 14 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a819e1ce4c18ecce8115195043a0c50_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3a819e1ce4c18ecce8115195043a0c50_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Users\Admin\AppData\Local\Temp\abc1.exe
      "C:\Users\Admin\AppData\Local\Temp\abc1.exe"
      2⤵
      • Adds policy Run key to start application
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4116
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:792
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:5056
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\abc1.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\abc1.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5100
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\abc1.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\abc1.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:3940
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4276
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:1864
      • 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\wolf.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\wolf.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3004
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\wolf.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\wolf.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:4000
    • C:\Users\Admin\AppData\Local\Temp\abc2.exe
      "C:\Users\Admin\AppData\Local\Temp\abc2.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:2712
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 484
            4⤵
            • Program crash
            PID:4336
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 492
            4⤵
            • Program crash
            PID:1588
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
          3⤵
            PID:5072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2712 -ip 2712
        1⤵
          PID:3924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2712 -ip 2712
          1⤵
            PID:5016

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                abc1.exe

                • Path C:\Users\Admin\AppData\Local\Temp\abc1.exe
                • Size 113KB
                • SHA256 0ba4cbfab6470cdf91b616be53af002a6d99329abc45371e63dfc39493a2f0f6
                • MD5 SHA1 SHA512 SSDEEP

                abc2.exe

                • Path C:\Users\Admin\AppData\Local\Temp\abc2.exe
                • Size 65KB
                • SHA256 e4fc7a02a191853604cc170c97b05e12eb4d8bb468aeecff1b5a6690fd7bcaf6
                • MD5 SHA1 SHA512 SSDEEP

                memory/2424-31-0x0000000010000000-0x0000000010048000-memory.dmp

                memory/2712-32-0x0000000010000000-0x0000000010048000-memory.dmp

                memory/2712-30-0x0000000010000000-0x0000000010048000-memory.dmp

                memory/2920-6-0x0000000001570000-0x0000000001578000-memory.dmp

                memory/2920-1-0x000000001BB90000-0x000000001BC36000-memory.dmp

                memory/2920-7-0x000000001C830000-0x000000001C87C000-memory.dmp

                memory/2920-5-0x00007FFD25520000-0x00007FFD25EC1000-memory.dmp

                memory/2920-0-0x00007FFD257D5000-0x00007FFD257D6000-memory.dmp

                memory/2920-4-0x000000001C710000-0x000000001C7AC000-memory.dmp

                memory/2920-29-0x00007FFD25520000-0x00007FFD25EC1000-memory.dmp

                memory/2920-3-0x000000001C1A0000-0x000000001C66E000-memory.dmp

                memory/2920-2-0x00007FFD25520000-0x00007FFD25EC1000-memory.dmp

                memory/4116-34-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-33-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-18-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-36-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-37-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-38-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-40-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-41-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-44-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-45-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-47-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-49-0x0000000000400000-0x000000000045D000-memory.dmp

                memory/4116-50-0x0000000000400000-0x000000000045D000-memory.dmp