Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01/03/2025, 15:11

General

  • Target

    JaffaCakes118_39c97da0a4b3a4b56950135f61a50405.exe

  • Size

    524KB

  • MD5

    39c97da0a4b3a4b56950135f61a50405

  • SHA1

    f1b9956053aac9d5a73a59bfbcbe9671c4389c41

  • SHA256

    4c642395304d6f67fcbccef24bf566917ce78b621bb9c6612587797c2ee95709

  • SHA512

    f10b3670a0bfea5f5df110298aa383296feb3daa67e169a8319a2e1f2e3614faea3ea426e00b8212b5aec24e151cfc5212f33a50bfd3235baf22632abe2ba562

  • SSDEEP

    12288:VnQQVJFKnxFwMtWw/RsigtZ6iyGzNB71lPibBWxbxUw:VnQ8FPMtWoRpgt/yGzNBZ1i0

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 8 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 15 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 64 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39c97da0a4b3a4b56950135f61a50405.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39c97da0a4b3a4b56950135f61a50405.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39c97da0a4b3a4b56950135f61a50405.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39c97da0a4b3a4b56950135f61a50405.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\VCQPC.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2336
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v ".Flasfh" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:1724
      • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
        "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1924
        • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
          "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2000
        • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
          "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
          4⤵
          • Adds policy Run key to start application
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • 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:1956
          • 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
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:704
            • C:\Windows\SysWOW64\reg.exe
              REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
              6⤵
              • Modifies firewall policy service
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:652
          • 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\Flaseher.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1072
            • C:\Windows\SysWOW64\reg.exe
              REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe:*:Enabled:Windows Messanger" /f
              6⤵
              • Modifies firewall policy service
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:936
          • 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
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:956
            • C:\Windows\SysWOW64\reg.exe
              REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
              6⤵
              • Modifies firewall policy service
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:1252
          • 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\locsrv.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\locsrv.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • System Location Discovery: System Language Discovery
            PID:776
            • C:\Windows\SysWOW64\reg.exe
              REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\locsrv.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\locsrv.exe:*:Enabled:Windows Messanger" /f
              6⤵
              • Modifies firewall policy service
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:2368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    da0cbe87b720a79b294147ed6a4b98be

    SHA1

    ebf0dc9efd7a12cb192e355cda87546acb4ab360

    SHA256

    7ccfeff356fdccc9145bd1e263aa1c56360ca7b6552ed5a5665c596d02a627ed

    SHA512

    f55c4a3d24d2f11db5eda3c816d1cd3b8804a171a7bf715b13d60788247fbb352eafaa5bd4e0a8086c1013396be0a48c7bdb904ab0f974fa0c75e81e3d365acc

  • \Users\Admin\AppData\Roaming\..Flash\Flaseher.exe

    Filesize

    524KB

    MD5

    12ae9516cdcc7d738d1810b99ec4477a

    SHA1

    3148116efdef8b0a476b5fe7ffe679db8a02c934

    SHA256

    6ef0fbec833c836c605350ab58a15d2b93e6e29c0976673d03f00e863880c538

    SHA512

    630a5bce2286ddeb1c2e9f91e32a463b3a6c609119cd14c3e8b164c85c8562e2ff3233576578218a3809b9780dde9cfa14db2d7420bc33ba87c34c3ab32e4df3

  • memory/2000-571-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2000-593-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2024-277-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2024-584-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2024-570-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3064-2-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/3064-74-0x0000000001CB0000-0x0000000001CB1000-memory.dmp

    Filesize

    4KB

  • memory/3064-144-0x00000000026F0000-0x0000000002774000-memory.dmp

    Filesize

    528KB