Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 03:52

General

  • Target
    c95ac5665057de851084e7dcb88658e720ae4e36b19360a3dcf37d6fbdd366c4.exe
  • Size 1.6MB
  • Sample250127-ee8e4azrbk
  • SHA256 c95ac5665057de851084e7dcb88658e720ae4e36b19360a3dcf37d6fbdd366c4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blackshades

    Blackshades is a remote access trojan with various capabilities.

  • Blackshades family
  • Blackshades payload 10 IoCs
  • Modifies firewall policy service 3 TTPs 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 16 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 13 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 35 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c95ac5665057de851084e7dcb88658e720ae4e36b19360a3dcf37d6fbdd366c4.exe
    "C:\Users\Admin\AppData\Local\Temp\c95ac5665057de851084e7dcb88658e720ae4e36b19360a3dcf37d6fbdd366c4.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ZTDNM.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Window Updates" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1980
    • C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4300
      • C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4844
        • 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:372
          • 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:3016
        • 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\Windows Update\winupdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3552
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:4104
        • 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:2756
          • 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:4540
        • 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\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4152
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:4704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        ZTDNM.txt

        • Path C:\Users\Admin\AppData\Local\Temp\ZTDNM.txt
        • Size 158B
        • SHA256 35e0dbc8b455ca38976157ce9d0293fd6cdca20f46f1cb69058a1e0f0af6f693
        • MD5 SHA1 SHA512

        winupdt.txt

        • Path C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.txt
        • Size 1.6MB
        • SHA256 0927a022d7f95530eaa551e6e51e30d84c2a65d0915a0fbe6a48ae01586eca07
        • MD5 SHA1 SHA512 SSDEEP

        memory/4300-38-0x0000000000400000-0x00000000005A8000-memory.dmp

        memory/4812-28-0x0000000000400000-0x00000000005A8000-memory.dmp

        memory/4812-0-0x0000000000400000-0x00000000005A8000-memory.dmp

        memory/4844-43-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-36-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-34-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-31-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-45-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-46-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-48-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-49-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-52-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-53-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-56-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4844-61-0x0000000000400000-0x000000000045C000-memory.dmp