Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2025, 11:33

General

  • Target

    597fb13ee0d53adf0169abd29a6caadf11c2ac4abf689d7780fe22f9d1ac0142N.exe

  • Size

    1.8MB

  • MD5

    b6546c2a235a496dda0f0485a3ec89e0

  • SHA1

    a2ff7d2d00ad1e6eab0eee187f0742b590d1d224

  • SHA256

    597fb13ee0d53adf0169abd29a6caadf11c2ac4abf689d7780fe22f9d1ac0142

  • SHA512

    68366b9b7810a8f7313d565d549ee3117e458208ee36ae6ce556f3548bb95e2c2b7509469305babef5d8e2a17655703beeb431fe8ffb9769a8736c5ae659a340

  • SSDEEP

    49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1Zw:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo49

Malware Config

Signatures

  • Blackshades

    Blackshades is a remote access trojan with various capabilities.

  • Blackshades family
  • Blackshades payload 9 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 15 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\597fb13ee0d53adf0169abd29a6caadf11c2ac4abf689d7780fe22f9d1ac0142N.exe
    "C:\Users\Admin\AppData\Local\Temp\597fb13ee0d53adf0169abd29a6caadf11c2ac4abf689d7780fe22f9d1ac0142N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Users\Admin\AppData\Local\Temp\YEpCS.exe
      "C:\Users\Admin\AppData\Local\Temp\YEpCS.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2788
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\QycOt.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2680
      • 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:2556
    • 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:3000
      • 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:296
        • 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:2892
          • 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:2032
        • 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:2904
          • 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:2092
        • 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:2996
          • 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:2756
        • 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:3020
          • 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:1432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

    Filesize

    1.8MB

    MD5

    a6c70c983a222dc17dcc33eb47782d3f

    SHA1

    acec7adc2abcbf375e71d4e130eb708fa53f9f27

    SHA256

    f5202c5aebaa7d969cb458c863556008507f61768a82e819f53565c0c745ee4c

    SHA512

    6dd9947e159023a2d65336f6b385a03ca3b3d3a654c857becbc8ded4002134ce3eb54e2bd04c7b8f39829ab92a75f624ec0af7d978d967224afecf42e631dc9c

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

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • memory/296-66-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-79-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-101-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-96-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-71-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-70-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-69-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-91-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-89-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-87-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-82-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/296-85-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2644-0-0x0000000000400000-0x00000000005D9000-memory.dmp

    Filesize

    1.8MB

  • memory/2644-12-0x0000000000670000-0x0000000000687000-memory.dmp

    Filesize

    92KB

  • memory/2644-11-0x0000000000670000-0x0000000000687000-memory.dmp

    Filesize

    92KB

  • memory/2788-20-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2788-77-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB