Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 17:55

General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe
  • Size 140KB
  • Sample261009-whrees1ydv
  • SHA256 3c7fff0c77735afac6d18edd65f4e87d46b1ae6a74d178f7df2239de1b0df5fc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Drops file in System32 directory 3 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • UPX packed file 5 IoCs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4860
      • C:\Windows\SysWOW64\netsh.exe
        C:\Windows\system32\netsh firewall add portopening TCP 29864 mssys
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3492
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c attrib -h "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5848
        • C:\Windows\SysWOW64\attrib.exe
          attrib -h "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:5960
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c copy /Y "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe" "C:\Windows\system32\"
        3⤵
        • Drops file in System32 directory
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:252
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1176
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c attrib +h "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Hide Artifacts: Hidden Files and Directories
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1100
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
          4⤵
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3176
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1912
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4636
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2496
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1456
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:6072
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:5452
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\system32\reg.exe add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /t REG_SZ /f /v mssys /d "C:\Windows\system32\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2736

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Daws.bcxj.exe
        • Size 140KB
        • SHA256 b3f26d6f25f57dde9002a4f83130fbd8387584658c06634612c272770e1575a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1828-0-0x0000000013140000-0x000000001314A000-memory.dmp

        memory/4860-3-0x0000000000B10000-0x0000000000B11000-memory.dmp

        memory/4860-25-0x0000000002130000-0x0000000002131000-memory.dmp

        memory/4860-26-0x0000000020010000-0x0000000020043000-memory.dmp

        memory/4860-27-0x0000000020010000-0x0000000020043000-memory.dmp

        memory/4860-41-0x0000000020010000-0x0000000020043000-memory.dmp

        memory/4860-46-0x0000000020010000-0x0000000020043000-memory.dmp

        memory/4860-47-0x0000000020010000-0x0000000020043000-memory.dmp