Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 23 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 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb.exe
    "C:\Users\Admin\AppData\Local\Temp\873dca0bba8aa4acfa59ad05bdcf61f845aa42bf1c1147a17766fab72204c2fb.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\pDbNr.exe
      "C:\Users\Admin\AppData\Local\Temp\pDbNr.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\cPtxJ.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2756
      • 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:2740
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.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:2016
      • 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:2652
        • 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:2432
          • 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:2300
        • 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:2160
          • 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:2356
        • 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:2156
          • 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:2688
        • 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:1940
          • 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:2952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

    Filesize

    677KB

    MD5

    d67c61a069583095100d15e284b6c656

    SHA1

    a0674f2a78fb77d784e828fc4c16acac69520781

    SHA256

    8ed301f5eaff9b373eeea1122f256e8fe47aae311554cf5d13e4ff846699c86f

    SHA512

    ea0042faaf1dbdcb3cde0cd1219473bd82843659e2adf128d8b71799c60c1e9dd037c8b09a2bbe837d44f074bc43c8b72855bcbb51a20b70de3fe61dbc0b1afe

  • \Users\Admin\AppData\Local\Temp\pDbNr.exe

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • memory/2016-63-0x0000000000400000-0x00000000005DC000-memory.dmp

    Filesize

    1.9MB

  • memory/2016-81-0x0000000000400000-0x00000000005DC000-memory.dmp

    Filesize

    1.9MB

  • memory/2364-11-0x00000000032C0000-0x00000000032D7000-memory.dmp

    Filesize

    92KB

  • memory/2364-12-0x00000000032C0000-0x00000000032D7000-memory.dmp

    Filesize

    92KB

  • memory/2364-61-0x00000000037A0000-0x000000000397C000-memory.dmp

    Filesize

    1.9MB

  • memory/2364-60-0x00000000037A0000-0x000000000397C000-memory.dmp

    Filesize

    1.9MB

  • memory/2364-65-0x0000000000400000-0x00000000005DC000-memory.dmp

    Filesize

    1.9MB

  • memory/2364-0-0x0000000000400000-0x00000000005DC000-memory.dmp

    Filesize

    1.9MB

  • memory/2540-20-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2540-84-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2652-75-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-92-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-70-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-74-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-76-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-85-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-89-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-73-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-94-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-96-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-98-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-103-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-108-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2652-113-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB