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Analysis

  • max time kernel
    148s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 16:19

General

  • Target

    2707697781ba3b87514705443ed654cc_JaffaCakes118.exe

  • Size

    592KB

  • MD5

    2707697781ba3b87514705443ed654cc

  • SHA1

    1f83e39d65886d501627db731b29fb05398e86fb

  • SHA256

    c0cd2336d642f10a938d8a528f6ae4611688440b5cd01acdce42665d8027e426

  • SHA512

    fab4063eaae1ec3460ababf359cfac499aeb33173f5d8c129f0ec4d6f8ec3ce11eec61e1d2b1888c3073837e7d59aaee0d1f1e4128cafc109536a5e2eba7da03

  • SSDEEP

    12288:MeEcNC1rnQ/95aFs53Vj4UxNbjXDzxZ39IwGjLTHj33m:bEcfl5ak9fbjRswGj/j33m

Score
10/10

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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 6 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe"
    1⤵
    • Drops autorun.inf file
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3184
    • C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe"
      2⤵
      • Adds policy Run key to start application
      • Boot or Logon Autostart Execution: Active Setup
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1628
      • 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:4556
        • 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:100
      • 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\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4816
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2707697781ba3b87514705443ed654cc_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:264
      • 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:1116
        • 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:64
      • 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\winupdate\WinUPdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winupdate\WinUPdt.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4696
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winupdate\WinUPdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winupdate\WinUPdt.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:1072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\winupdate\WinUPdt.exe

    Filesize

    592KB

    MD5

    2707697781ba3b87514705443ed654cc

    SHA1

    1f83e39d65886d501627db731b29fb05398e86fb

    SHA256

    c0cd2336d642f10a938d8a528f6ae4611688440b5cd01acdce42665d8027e426

    SHA512

    fab4063eaae1ec3460ababf359cfac499aeb33173f5d8c129f0ec4d6f8ec3ce11eec61e1d2b1888c3073837e7d59aaee0d1f1e4128cafc109536a5e2eba7da03

  • memory/1628-22-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-40-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-8-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-57-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-18-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-19-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-2-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-30-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-25-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-37-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-53-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-43-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1628-47-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/3184-0-0x0000000000630000-0x0000000000638000-memory.dmp

    Filesize

    32KB

  • memory/3184-1-0x0000000000630000-0x0000000000638000-memory.dmp

    Filesize

    32KB