Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2025, 22:23

General

  • Target

    873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb.exe

  • Size

    677KB

  • MD5

    5dcf6d7a0d96a2e744ebf1389296143c

  • SHA1

    5cbba1cf777c595b8bf78c246f5a9a33c9b66f94

  • SHA256

    873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb

  • SHA512

    7f08a7c54c18086d47685f08b717743d2e4cc6c5ce6143876cbb1871fdf46a23397e2a5be0ca13923a1c731095c9004e6b8d8e8303416d9b3829d3bb0c75cd11

  • SSDEEP

    12288:9kiL11aPKT1F5Vs+TVonB7krqRTUWfIVzJVUYMiGx/OHWtWOaP:9ki+PKT1F5S7BgORTWJOXBSP

Malware Config

Signatures

  • Blackshades

    Blackshades is a remote access trojan with various capabilities.

  • Blackshades family
  • Blackshades payload 12 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 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 21 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 14 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 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb.exe
    "C:\Users\Admin\AppData\Local\Temp\873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\VQPKJ.exe
      "C:\Users\Admin\AppData\Local\Temp\VQPKJ.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2248
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PKZES.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4820
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "csrs" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4152
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Users\Admin\AppData\Roaming\csrs.exe
        C:\Users\Admin\AppData\Roaming\csrs.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4312
        • 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:2308
          • 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:3304
        • 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\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3172
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3276
        • 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:3184
          • 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:3484
        • 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\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1592
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3692

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          130B

          MD5

          34a635bb69f9dc2d8e8ceba2f6b25308

          SHA1

          66bbd6b4eb975af0a799c6be7aaed6917f5df10c

          SHA256

          eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

          SHA512

          ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

        • C:\Users\Admin\AppData\Local\Temp\VQPKJ.exe

          Filesize

          12KB

          MD5

          466773bfcbd01059584cdae36e3c281c

          SHA1

          81e68615ef27cf363d6fe96582433c8a7ce8043b

          SHA256

          21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

          SHA512

          1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

        • C:\Users\Admin\AppData\Roaming\csrs.txt

          Filesize

          677KB

          MD5

          f8e00b87aaf798c38bce6d997bfed0ab

          SHA1

          5a02af1e496f57dde7cdc0e1f9282ec27d5161da

          SHA256

          6a821c7e0ca078aa63d66fd24ba41708512754697c9e8f62a5b03ea30af2e5ca

          SHA512

          9dc2d5429484b4357e6c18a7026476f6136373408790f0c65c70d3674c2c1cc26531ed381a5c5a878e278b64c67ce32fd9775089c9e4e38a4b663e7d02cd479a

        • memory/1648-37-0x0000000000400000-0x00000000005DC000-memory.dmp

          Filesize

          1.9MB

        • memory/1648-0-0x0000000000400000-0x00000000005DC000-memory.dmp

          Filesize

          1.9MB

        • memory/2248-11-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2248-53-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2956-44-0x0000000000400000-0x00000000005DC000-memory.dmp

          Filesize

          1.9MB

        • memory/4312-47-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-65-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-45-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-40-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-54-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-58-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-63-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-46-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-68-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-70-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-72-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-77-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-79-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4312-81-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB