Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/07/2024, 10:29

General

  • Target

    b6fe30a0f715b0f59389372500a99f30N.exe

  • Size

    1.8MB

  • MD5

    b6fe30a0f715b0f59389372500a99f30

  • SHA1

    1dfc16e687fc158d6c70dc92d039359962ab3566

  • SHA256

    131d03ed80106f2bf316a1cc646e9a67a0e8efda67a950feebffbcc190d21872

  • SHA512

    893d8a7b2891dd16d37bcd8d7ab7745cc2d6384f2182b2aec24f516bfe36ee17d483cbf1f164b79939c6dcee2087bbfc01e278905c10d2f2a6b42f993e80de2d

  • SSDEEP

    49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1ZY:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo4X

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
  • UPX packed file 15 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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\b6fe30a0f715b0f59389372500a99f30N.exe
    "C:\Users\Admin\AppData\Local\Temp\b6fe30a0f715b0f59389372500a99f30N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Users\Admin\AppData\Local\Temp\lkGQy.exe
      "C:\Users\Admin\AppData\Local\Temp\lkGQy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3524
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\olHds.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1460
      • 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:3756
    • 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:1820
      • 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:4796
        • 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:972
          • 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:692
        • 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:3112
          • 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:3508
        • 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:2568
          • 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:1456
        • 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:4576
          • 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:1924

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          12KB

          MD5

          466773bfcbd01059584cdae36e3c281c

          SHA1

          81e68615ef27cf363d6fe96582433c8a7ce8043b

          SHA256

          21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

          SHA512

          1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

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

          Filesize

          130B

          MD5

          34a635bb69f9dc2d8e8ceba2f6b25308

          SHA1

          66bbd6b4eb975af0a799c6be7aaed6917f5df10c

          SHA256

          eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

          SHA512

          ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

          Filesize

          1.8MB

          MD5

          12e3ebf6bcf8b59adbea3c5dc8d7de94

          SHA1

          020278b5a17c7d9984d50980ee36684848f222fe

          SHA256

          17b53939fadbca78276b68b64e482158481e74386e79f47638ac2b7bfa846493

          SHA512

          a43dd0f9f3f79dd03cee550670188a2ff16349f3b73020828258af3fa22fe38240df0ce770e73b165816ae5b8eb8d991e72d3ef3a2c3d8fdb5fbb08033035e60

        • memory/2684-0-0x0000000000400000-0x00000000005D9000-memory.dmp

          Filesize

          1.8MB

        • memory/3524-11-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/3524-52-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/4796-45-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-46-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-44-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-40-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-53-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-55-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-56-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-59-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-61-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-63-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-65-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4796-73-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB