Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 05:01

General

  • Target

    f8e6c30e2251d270b63046794d67a9aa8a801b04315590b18b34450cfe17f0bd.exe

  • Size

    65KB

  • MD5

    3bef8324184694884dad05fa686d4bac

  • SHA1

    091a6d68fa130d8ee32b32425cd64d92612a5a91

  • SHA256

    f8e6c30e2251d270b63046794d67a9aa8a801b04315590b18b34450cfe17f0bd

  • SHA512

    ef9bee56ce2dedc4cd07f428299f81045c0a9a32fd9f98a3316f23ead8f801e1e1bf6620dcda720649a2e29f10ef60dce1dd2788c16390b6a383de82d934596d

  • SSDEEP

    1536:ECq3yRuqrI01eArdW/O7JnI2e13XiLij40MkTUVqa/Ou5WWWWWWWWWWWWWWWWWWZ:7WNqkOJWmo1HpM0MkTUmub

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
  • Loads dropped DLL 8 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8e6c30e2251d270b63046794d67a9aa8a801b04315590b18b34450cfe17f0bd.exe
    "C:\Users\Admin\AppData\Local\Temp\f8e6c30e2251d270b63046794d67a9aa8a801b04315590b18b34450cfe17f0bd.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2348
    • \??\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
      • Loads dropped DLL
      • 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:2804
      • \??\c:\windows\system\spoolsv.exe
        c:\windows\system\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2748
        • \??\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
          • Loads dropped DLL
          • 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:2708
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2764
          • C:\Windows\SysWOW64\at.exe
            at 05:03 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:2976
            • C:\Windows\SysWOW64\at.exe
              at 05:04 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:1636
              • C:\Windows\SysWOW64\at.exe
                at 05:05 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:1804

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

                Filesize

                65KB

                MD5

                cfbaed00aedd9bd8f959b55f78f893f0

                SHA1

                ffe7818592a9c4f2f12b4f845c22429a11d49546

                SHA256

                5f251c8f9d95bb7a772c3a48305718a511c2a027afc8bb5054d9ab684637bfea

                SHA512

                45b4ff77f60847e527369337756aebb63c85897a73f1c1b65e66fdbf0072c13adf087d99858e450e000607a945ce6d501bf357fe3140dd7936f9043432eccecd

              • \Windows\system\explorer.exe

                Filesize

                65KB

                MD5

                e2fc5fe7308dddf832f20c30d3f247df

                SHA1

                12890a6414f4ea3da1635c9c160cf363b44db86d

                SHA256

                7e3f0652435906635920a4e122dc9ab209d21cc19732b34426026de01ba5f812

                SHA512

                be99df12be330784121ff063d33c3b5d7fcb8122462192df4360b08e3ff33b85cc5d00e9e4a644951ed5e7b7760bca884d853fe6d505de20e0f3451d624b97a5

              • \Windows\system\spoolsv.exe

                Filesize

                65KB

                MD5

                060cd3198957053f85574fa1223bb9af

                SHA1

                6c8e9fa47fe0f74a06eee2927873b7062bbc11b4

                SHA256

                02ee1759c905f190da1638f759c4a686d78bbd6fe3128072dc851bdb7a2ef7c9

                SHA512

                237f9785578c4c86caeea24e0a0034c7e8d6ea423960d590d4d5fd14badce7d5fdcfaf20a62f54d8191017de9eae689778715e304de1d6f9882925fa61f71ee5

              • \Windows\system\svchost.exe

                Filesize

                65KB

                MD5

                8fdfe5f247033887969657cb3caae9c5

                SHA1

                ed5fe1a2e2b8b59e6de72cae29e5b502c40c3f11

                SHA256

                cdd12e878a328f4378f30862e6d76558932f7f831a67fc9a95aa6edae93cab17

                SHA512

                71fe9a9d9c4b336ffb9f1837c29bd3bc47718a10d491da95a68ba71e7f315f1a0d5f97bb90ed8d7941abb1667fb3d3177123a0888b6be01d948fc8a7094198f9

              • memory/2348-3-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2348-2-0x0000000072940000-0x0000000072A93000-memory.dmp

                Filesize

                1.3MB

              • memory/2348-17-0x00000000025C0000-0x00000000025F1000-memory.dmp

                Filesize

                196KB

              • memory/2348-4-0x0000000000401000-0x000000000042E000-memory.dmp

                Filesize

                180KB

              • memory/2348-1-0x0000000000020000-0x0000000000024000-memory.dmp

                Filesize

                16KB

              • memory/2348-77-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2348-0-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2348-78-0x0000000000401000-0x000000000042E000-memory.dmp

                Filesize

                180KB

              • memory/2348-64-0x0000000000020000-0x0000000000024000-memory.dmp

                Filesize

                16KB

              • memory/2708-82-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2708-58-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2708-52-0x0000000072940000-0x0000000072A93000-memory.dmp

                Filesize

                1.3MB

              • memory/2708-62-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2748-40-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2748-56-0x0000000001CD0000-0x0000000001D01000-memory.dmp

                Filesize

                196KB

              • memory/2748-75-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2748-36-0x0000000072940000-0x0000000072A93000-memory.dmp

                Filesize

                1.3MB

              • memory/2764-66-0x0000000072940000-0x0000000072A93000-memory.dmp

                Filesize

                1.3MB

              • memory/2764-71-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2764-65-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2804-35-0x0000000002560000-0x0000000002591000-memory.dmp

                Filesize

                196KB

              • memory/2804-18-0x0000000072940000-0x0000000072A93000-memory.dmp

                Filesize

                1.3MB

              • memory/2804-20-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2804-80-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2804-21-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB

              • memory/2804-91-0x0000000000400000-0x0000000000431000-memory.dmp

                Filesize

                196KB