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Analysis

  • max time kernel
    65s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 09:29

General

  • Target

    c9b924e833a8196e85215a4de2b2dac97a615050e1542a483703011a3bcf7083.exe

  • Size

    65KB

  • MD5

    aa531d6157cc02a3909d85d3f38a12c8

  • SHA1

    08cb365b3c3143eaae2236841f6f2aa0d33e8565

  • SHA256

    c9b924e833a8196e85215a4de2b2dac97a615050e1542a483703011a3bcf7083

  • SHA512

    64b0b10c7ab71e0084614d9967b2e80bbd45a8794adb2ad13f0449c12d0ef73c49e17f68408d035f9b773f690a3b1ba48290d642a32c9bf0b4391e218ee3fc28

  • SSDEEP

    1536:ECq3yRuqrI01eArdW/O7JnI2e13XiLij40MkTUVqa/Oun:7WNqkOJWmo1HpM0MkTUmun

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 8 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9b924e833a8196e85215a4de2b2dac97a615050e1542a483703011a3bcf7083.exe
    "C:\Users\Admin\AppData\Local\Temp\c9b924e833a8196e85215a4de2b2dac97a615050e1542a483703011a3bcf7083.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4804
    • \??\c:\windows\system\explorer.exe
      c:\windows\system\explorer.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • Modifies Installed Components in the registry
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3260
      • \??\c:\windows\system\spoolsv.exe
        c:\windows\system\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3168
        • \??\c:\windows\system\svchost.exe
          c:\windows\system\svchost.exe
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Modifies Installed Components in the registry
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1576
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:3524
          • C:\Windows\SysWOW64\at.exe
            at 09:32 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:3056
            • C:\Windows\SysWOW64\at.exe
              at 09:33 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:1728
              • C:\Windows\SysWOW64\at.exe
                at 09:34 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:4644

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          65KB

          MD5

          2f2f8ae0aa27fef459a8193ac7ab01f5

          SHA1

          7a83962abab631fa39dc434e63ec5e819a15ad39

          SHA256

          0e9f37ac42878893e5e78ba208eb3eb6eab34b4fe9dbf5e44200a03b63c57ce8

          SHA512

          a39615dd81c5fb4d7b3a5905dc3819023aa71fec4ee26fb86ee9ce5a5bc7fe1dd9990f3955bcba49b6a758a228b709294eaec65a49ea23f1da88bac84a837ba3

        • C:\Windows\System\explorer.exe

          Filesize

          65KB

          MD5

          21878ce9b4690ab11fd7d732650ff766

          SHA1

          9936f20264c918879cf85b968d70c91f3b8e30a6

          SHA256

          dd2611fa5fb15baead7464c327bf8cd270f2965f7ad1dc450b3c1d1cc01bc113

          SHA512

          21db66653368e359a11df8df63355b7e03a8641fb515aceae18d98a70b9388e15f743a513493e8202da70b37b67dc2cac8288a2237812d47b57b2d94998d5284

        • C:\Windows\System\spoolsv.exe

          Filesize

          65KB

          MD5

          769604a79e740532be13b35585c96a2c

          SHA1

          ba1e37c56ff6dfe174acda44b923df0a9510cbf5

          SHA256

          6609185409281e0bcdfb827f7d1ffa4c1eea7cefff1e9b9cad25d8c7b5d550c1

          SHA512

          cbf2adb59fe4fabfb4859082735530eca9777b555acb232e38eca2a0df99b53235324086699f105755171ad7caffedb402d557a1683e5b6f44d5693128a02bc6

        • C:\Windows\System\svchost.exe

          Filesize

          65KB

          MD5

          74998be5045e10a737e34f16c620b805

          SHA1

          97f91592e1365a8e6acbb88c443c2813805f1da9

          SHA256

          a25c39ee857cafb305ed0a294c58abc2430e7e85a1259972ecae065c9aa03f05

          SHA512

          7f9b354efcc080dbede3b58e9a79d35c1b706830e3e4e3a47628dde142054f1538340d89758609083b8c45b06c4c72d7c5013e9b5b38fd4ef8c58ab2a86d893c

        • memory/1576-62-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/1576-37-0x0000000075130000-0x000000007528D000-memory.dmp

          Filesize

          1.4MB

        • memory/1576-41-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3168-55-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3168-27-0x0000000075130000-0x000000007528D000-memory.dmp

          Filesize

          1.4MB

        • memory/3168-26-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3260-14-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3260-60-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3260-17-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3260-13-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3260-15-0x0000000075130000-0x000000007528D000-memory.dmp

          Filesize

          1.4MB

        • memory/3260-71-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3524-44-0x0000000075130000-0x000000007528D000-memory.dmp

          Filesize

          1.4MB

        • memory/3524-48-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/3524-51-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/4804-1-0x00000000001C0000-0x00000000001C4000-memory.dmp

          Filesize

          16KB

        • memory/4804-59-0x0000000000401000-0x000000000042E000-memory.dmp

          Filesize

          180KB

        • memory/4804-58-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/4804-2-0x0000000075130000-0x000000007528D000-memory.dmp

          Filesize

          1.4MB

        • memory/4804-4-0x0000000000401000-0x000000000042E000-memory.dmp

          Filesize

          180KB

        • memory/4804-0-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/4804-3-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB