Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03-06-2024 03:45

General

  • Target

    ca787487f1eec4b1b1bf1fd4e7edecae1cde4f6eb854695bc05f8e25695577e5.exe

  • Size

    200KB

  • MD5

    540639790e808383dff1db73ffb3953f

  • SHA1

    904848d13943b6e5f30ff759976af770d4514863

  • SHA256

    ca787487f1eec4b1b1bf1fd4e7edecae1cde4f6eb854695bc05f8e25695577e5

  • SHA512

    eb461f3131221cc3ffa97087c7846a96193c6446e8f5ef3726cbc3e4fc9839b640fb1d9781ce216cbce38f926e51661148b4006747085b2831e1a67d89ec240e

  • SSDEEP

    3072:7vEfVUzSLhIVbV6i5LirrlZrHyrUHUckoMQ2RN6uBL9it:7vEN2U+T6i5LirrllHy4HUcMQY6C9it

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\ca787487f1eec4b1b1bf1fd4e7edecae1cde4f6eb854695bc05f8e25695577e5.exe
    "C:\Users\Admin\AppData\Local\Temp\ca787487f1eec4b1b1bf1fd4e7edecae1cde4f6eb854695bc05f8e25695577e5.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1916
    • \??\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:2000
      • \??\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:2632
        • \??\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:2884
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2528
          • C:\Windows\SysWOW64\at.exe
            at 03:47 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:2516
            • C:\Windows\SysWOW64\at.exe
              at 03:48 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:2168
              • C:\Windows\SysWOW64\at.exe
                at 03:49 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:2480

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          216KB

          MD5

          ad0b1517c683966373dad4d29cba2037

          SHA1

          e29a417a733386ace012840d5f1bf8e3dd43c445

          SHA256

          c428f2ec35b80a7ecaef78f445c5e73ba66fb534c9534ea9a59c41bb2336684e

          SHA512

          ad0bb463f337f8ca47a911a85120bb9eed790c7c2de367b5f90eac3babb02830b614642abc7b1fdb7ccdd56364c21f761c4a15c1371676b41a21ff5603970d75

        • \Windows\system\explorer.exe

          Filesize

          216KB

          MD5

          87433a3d13c13c63a7645935fc98b541

          SHA1

          bd72cc6b1452ce2be60cc0f008f180d34be6adb8

          SHA256

          d73550a61be42e7914fed65f86443e68edd3bce3bfe189a7be8aa2665cbc0fcf

          SHA512

          e75ad321e132b86ff0c4f619e4138e0866a8c6c265970bcf0c2e12ba7099d2100e1f3925cc94aeca557ef1d2ad77d2f57efb600c1e62ab21940c5d4eb56e8498

        • \Windows\system\spoolsv.exe

          Filesize

          216KB

          MD5

          f47785a07398c6e7b31b8d1e77fba527

          SHA1

          99c8ef5826e2bea6f4cef73c72c9112c76d532bd

          SHA256

          c8f6b28c00a984ee73cecab05fa344d9939fec5beba04bba70bfa4ecb9503402

          SHA512

          8e0176e6a5f568c7223cd8f85794ad01b3b5f215df71f35b7a1abc56d61ae91772fecd9047f372cb410c4f0911315ae2e9b32f2e85ebcfc35ba5a749ba237467

        • \Windows\system\svchost.exe

          Filesize

          216KB

          MD5

          3fe021c9d9012681346a919191ea45c9

          SHA1

          0c14341bc61e0d8af023104d394e0844f62de122

          SHA256

          7c58b49529aa52d63b8459fd4f8e1f3d3f05aaa746bee8b687882eed93f58e5e

          SHA512

          590e5d5bf0bb8e347fe7b7366e05a96cfcc46899c69d8f45918d188c70f1c63c8cc0a6ead9e0f7305be14f3cfe4ee69fa67a054cdcc799e64dd339b090dff591

        • memory/1916-0-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/1916-12-0x0000000003280000-0x00000000032B1000-memory.dmp

          Filesize

          196KB

        • memory/1916-57-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2000-26-0x0000000002600000-0x0000000002631000-memory.dmp

          Filesize

          196KB

        • memory/2528-55-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2632-36-0x0000000001EF0000-0x0000000001F21000-memory.dmp

          Filesize

          196KB

        • memory/2632-56-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2884-45-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB