Analysis

  • max time kernel
    117s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2024, 11:49

General

  • Target

    791cc8b5150b5d224858062fecee0b202bc1dda178c428dbf99987fd0e46c46fN.exe

  • Size

    1.9MB

  • MD5

    d30c418dd9828690dd8d7cd6f8eacde0

  • SHA1

    2cec53c79697648abbbc78587f879093d1640e77

  • SHA256

    791cc8b5150b5d224858062fecee0b202bc1dda178c428dbf99987fd0e46c46f

  • SHA512

    6e6c9629d711c5af37e0ad60f22c3d2158b5b0ce4a4de49bff1b3ebdc8d456c8b6f66d3875858ee1e20ab1609018d207f05358ce88c1638cbd0d6104ecaffef7

  • SSDEEP

    49152:CLIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1Zx:SIUXQgBiI6i2KFU0yBfM7a9QDosGeo40

Malware Config

Signatures

  • 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 20 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\791cc8b5150b5d224858062fecee0b202bc1dda178c428dbf99987fd0e46c46fN.exe
    "C:\Users\Admin\AppData\Local\Temp\791cc8b5150b5d224858062fecee0b202bc1dda178c428dbf99987fd0e46c46fN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Users\Admin\AppData\Local\Temp\Xsuxh.exe
      "C:\Users\Admin\AppData\Local\Temp\Xsuxh.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3452
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yhEDN.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:464
      • 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:876
    • 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:2024
      • 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:4116
        • 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:4440
          • 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:4444
        • 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:224
          • 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:4392
        • 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:2220
          • 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:316
        • 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:1980
          • 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:1496

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          12KB

          MD5

          466773bfcbd01059584cdae36e3c281c

          SHA1

          81e68615ef27cf363d6fe96582433c8a7ce8043b

          SHA256

          21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

          SHA512

          1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

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

          Filesize

          130B

          MD5

          34a635bb69f9dc2d8e8ceba2f6b25308

          SHA1

          66bbd6b4eb975af0a799c6be7aaed6917f5df10c

          SHA256

          eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

          SHA512

          ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

          Filesize

          1.9MB

          MD5

          7086e0863e40630b98b095895700a037

          SHA1

          3b5d5af58391d0fa7ed240af22229c4deb07053f

          SHA256

          da405dfc3f02425812f092d8b6ccb4ac99a4cab729d819505369f166d4182703

          SHA512

          a3cf49639f80344012dc0b54658774bcdc1c20c7e4ba2d1c432250b5ab5759ec3f68ba5096db5a0cd329168a0db66bacb45e46483f1b351693de6ad00dc9ba4d

        • memory/2024-46-0x0000000000400000-0x00000000005DD000-memory.dmp

          Filesize

          1.9MB

        • memory/3452-10-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/3452-52-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/4116-64-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-67-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-45-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-40-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-78-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-54-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-57-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-59-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-62-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-76-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-43-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-69-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4116-71-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4716-0-0x0000000000400000-0x00000000005DD000-memory.dmp

          Filesize

          1.9MB

        • memory/4716-37-0x0000000000400000-0x00000000005DD000-memory.dmp

          Filesize

          1.9MB