Analysis

  • max time kernel
    148s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 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 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed.exe
    "C:\Users\Admin\AppData\Local\Temp\b61d9eb6f0cbbdac1fca08faa6e1cd070c1cc2be344c6eea0488ab671809f1ed.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\PxrJH.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1056
      • 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:2056
    • C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update\winupdt.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2276
      • 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:2724
        • 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:2412
          • 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:2584
        • 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:2900
          • 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:2600
        • 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:2828
          • 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:2564
        • 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:2656
          • 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:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    158B

    MD5

    1954c7e666c5b4d1117ef07bc0c9b8ec

    SHA1

    559e3c0273c1463e9184027b749bdaad0a372681

    SHA256

    35e0dbc8b455ca38976157ce9d0293fd6cdca20f46f1cb69058a1e0f0af6f693

    SHA512

    3939de8d0ab7e67b59ff8bebed5580dafd38d8785193fd42a289728500761a68b9e6660605e19e10d4278dd106fea4b273a208f25485e7389c8f19b2958c926a

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

    Filesize

    1.6MB

    MD5

    6f9b4da77f322076dbd793561b9bda72

    SHA1

    ab670d79896a1a525abd029ad843d28b67e6c94b

    SHA256

    be4cc94ebf7d300695f03cd1ee044920afdf881f53d6f72d488486b41a1dc1a1

    SHA512

    4e830823a9371880f52968709b7f92854537dded5fa473564b829fc90d069437d1f394728fa0d060e442b2cec81cab7d34f8bcfe9242d44a071c5a1d074782bb

  • memory/2276-55-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/2496-44-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/2496-42-0x0000000003640000-0x00000000037E8000-memory.dmp

    Filesize

    1.7MB

  • memory/2496-0-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/2724-63-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-54-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-52-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-61-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-49-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-65-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-66-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-67-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-69-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-71-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-74-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2724-77-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB