Analysis

  • max time kernel
    148s
  • 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
    24/01/2025, 13:46

General

  • Target

    b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed.exe

  • Size

    1.6MB

  • MD5

    caeb6a1547b77ab78d44aa9b5c577f9f

  • SHA1

    a97288343833ab51a0a4963d597ea64d8f89364b

  • SHA256

    b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed

  • SHA512

    99af176137cec2f86729b378cfa196378741b844b1c89ac857731fde8911675399c5fe6a85c2074c11c53ba079e2da5761a57cec5459266fe3e2a581c7c650dc

  • SSDEEP

    12288:bB5a3hizhz/o456rn9lkQ8rxQslgBKR1jl9RL9BVnDXLmoIY7Tm+jZFluq9wd4UC:bkB4tpHlgGjlLHlFoq2d5C

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\b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed.exe
    "C:\Users\Admin\AppData\Local\Temp\b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BAxhg.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4388
      • 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:4612
    • 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:3604
      • 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:4512
        • 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:444
          • 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:1984
        • 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:4552
          • 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:4968
        • 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:3276
          • 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:4624
        • 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:4356
          • 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:904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BAxhg.txt

    Filesize

    158B

    MD5

    1954c7e666c5b4d1117ef07bc0c9b8ec

    SHA1

    559e3c0273c1463e9184027b749bdaad0a372681

    SHA256

    35e0dbc8b455ca38976157ce9d0293fd6cdca20f46f1cb69058a1e0f0af6f693

    SHA512

    3939de8d0ab7e67b59ff8bebed5580dafd38d8785193fd42a289728500761a68b9e6660605e19e10d4278dd106fea4b273a208f25485e7389c8f19b2958c926a

  • C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.txt

    Filesize

    1.6MB

    MD5

    58ff3432a020ad8d78e6aa82dbb35904

    SHA1

    773f0563bca67bf9b61795da1885b126b453f5ca

    SHA256

    1abd6e22914d5859430afa40e8038a9485e03642458e96da4e5ab7762e26468a

    SHA512

    ce286fd42e159770346898f0dc715f932b3d1a6ae91a0b86b48ddf52dc530955fac70a7be68d348394f614501516066ceff96ab869cb5b53ffe4859b46dddbd9

  • memory/3064-30-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/3064-0-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/3604-42-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/4512-43-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-34-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-36-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-31-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-45-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-47-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-48-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-49-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-52-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-53-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-56-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4512-61-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB