Analysis

  • max time kernel
    121s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2025 03:25

General

  • Target

    3bfc439509ad08603e52b0647d5bf6099856d0b796fd00864df597000dd6ef39N.exe

  • Size

    1.5MB

  • MD5

    ecb281448428083a2a34031c1f5d9510

  • SHA1

    173ec723e02039748925b774f1026180faf95a5f

  • SHA256

    3bfc439509ad08603e52b0647d5bf6099856d0b796fd00864df597000dd6ef39

  • SHA512

    ddcccfbce073bf5f92c8bd005cb1edfd9cf161d9724b4e267c6f1e38b2694335ad9f5974d834227d66a4679bff612f1313b1bae8257374060a5cf9b386afdb77

  • SSDEEP

    12288:8+UjTLktugGpjg3hImpAE8r8UldIsxvc2DD5TuVixuDCvK+7lvHs+D5oSS:8zjPktUQhHUldIspczCSQJO

Malware Config

Signatures

  • Blackshades

    Blackshades is a remote access trojan with various capabilities.

  • Blackshades family
  • Blackshades payload 6 IoCs
  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 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 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 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bfc439509ad08603e52b0647d5bf6099856d0b796fd00864df597000dd6ef39N.exe
    "C:\Users\Admin\AppData\Local\Temp\3bfc439509ad08603e52b0647d5bf6099856d0b796fd00864df597000dd6ef39N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\Cljsy.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Winlogon" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2732
    • C:\Users\Admin\AppData\Roaming\winlogon.exe
      "C:\Users\Admin\AppData\Roaming\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        winlogon.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2744
        • 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:2560
          • 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:744
        • 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\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1388
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2228
        • 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:2788
          • 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:2356
        • 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\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2572
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1160
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        C:\Users\Admin\AppData\Roaming\winlogon.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    138B

    MD5

    4da6717f2c70f4bd32ad33a227a2ff47

    SHA1

    3d7f7159e1f695bd469287d1ad4ffa0841b407a8

    SHA256

    a12bb2e5d2fb0b3c400ce311fae72995a00b57a97d23e4b9effec47cff189d07

    SHA512

    6765314054ad9bf2164058248f3d3a17775176925abbe4376aec030dca3a5e59be8b9e96139941fec2b2e1a9bff38f87abdb29ea09a299d8ab7e23ecec4083df

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

    Filesize

    1.5MB

    MD5

    6831b19be87fd44088614720a1f2a760

    SHA1

    c32a80665fe0b079f79e4fb9dc4d1356679ab17f

    SHA256

    1a38ae2dfaf3f10c83f7fee6b071273c092711b4b8cc82e15162f27277683cbe

    SHA512

    a2de10e195e7d585e65f16c96e45abd2e1d084fe84a51080fbb926462d657b7254f0007adb9d4dcc20e88fa569fead1fe517e92415d94cab160a0ab2ef68abad

  • memory/2136-61-0x0000000000400000-0x000000000057F000-memory.dmp

    Filesize

    1.5MB

  • memory/2424-42-0x0000000002E70000-0x0000000002FEF000-memory.dmp

    Filesize

    1.5MB

  • memory/2424-44-0x0000000000400000-0x000000000057F000-memory.dmp

    Filesize

    1.5MB

  • memory/2424-0-0x0000000000400000-0x000000000057F000-memory.dmp

    Filesize

    1.5MB

  • memory/2544-64-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2544-57-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2544-60-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2544-69-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2744-55-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-51-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-52-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-48-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-68-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-70-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-72-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2744-74-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB