Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 03:05

General

  • Target

    bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe

  • Size

    687KB

  • MD5

    bfeaeb3ec0c25caf769f9250f167e8de

  • SHA1

    73ee445b717e7036736fe84137f328c2ff99702f

  • SHA256

    d3b3d716a35fdd2fbc78ffc0085cb63c701a01889e905a9031425071d5f9636c

  • SHA512

    918cce4405b123df4e8031585e51ce66767ba81c3fa64e8ca57bc7e142f75135d66ead02fc389abdf85cbd04285df3f23d1f96522ca8399c980af1d759024115

  • SSDEEP

    12288:vxyyytbuOdJsl08DOf5IQkI4kWOT7WooxEqzG:ZR4xJsS8iTkI4kWOfWoH

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.

  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.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:2296
        • 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:5056
          • 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:836
        • 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\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1516
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\bfeaeb3ec0c25caf769f9250f167e8de_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:4196
        • 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:712
          • 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:1008
        • 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\flash.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\flash.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1624
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\flash.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\flash.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1100-5-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1100-8-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1100-18-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1676-0-0x0000000074652000-0x0000000074653000-memory.dmp

    Filesize

    4KB

  • memory/1676-1-0x0000000074650000-0x0000000074C01000-memory.dmp

    Filesize

    5.7MB

  • memory/1676-2-0x0000000074650000-0x0000000074C01000-memory.dmp

    Filesize

    5.7MB

  • memory/1676-11-0x0000000074650000-0x0000000074C01000-memory.dmp

    Filesize

    5.7MB

  • memory/2296-16-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/2296-14-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/2296-12-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/2296-25-0x00000000763F0000-0x00000000764E0000-memory.dmp

    Filesize

    960KB

  • memory/2296-24-0x00000000763F0000-0x00000000764E0000-memory.dmp

    Filesize

    960KB

  • memory/2296-23-0x0000000076411000-0x0000000076412000-memory.dmp

    Filesize

    4KB

  • memory/2296-26-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/2296-27-0x00000000763F0000-0x00000000764E0000-memory.dmp

    Filesize

    960KB

  • memory/2296-30-0x00000000763F0000-0x00000000764E0000-memory.dmp

    Filesize

    960KB