Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 02:20

General

  • Target

    a7b91e4908a474a7066ea76871b347ed2bdacb29d04b02aecfdb12b04c539d83.exe

  • Size

    206KB

  • MD5

    0b5b4c2966f8fd334a85b47c2a65b3f2

  • SHA1

    9fe1f6f86bb93d017c187fae2b11e532ac940a52

  • SHA256

    a7b91e4908a474a7066ea76871b347ed2bdacb29d04b02aecfdb12b04c539d83

  • SHA512

    4686a72af4b93bf21c816f94b385b37941f896f86498c75745c759a7935f7ad477939ed7a1ad4809ab36d5dd09ca719ae179ceacaa8b4db7f9de55b0159383bd

  • SSDEEP

    3072:5vEfVUzSLhIVbV6i5LirrlZrHyrUHUckoMQ2RN6unr:5vEN2U+T6i5LirrllHy4HUcMQY6C

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\a7b91e4908a474a7066ea76871b347ed2bdacb29d04b02aecfdb12b04c539d83.exe
    "C:\Users\Admin\AppData\Local\Temp\a7b91e4908a474a7066ea76871b347ed2bdacb29d04b02aecfdb12b04c539d83.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1688
    • \??\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:2708
      • \??\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:2720
        • \??\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:2776
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2860
          • C:\Windows\SysWOW64\at.exe
            at 02:22 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:2536
            • C:\Windows\SysWOW64\at.exe
              at 02:23 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:1808
              • C:\Windows\SysWOW64\at.exe
                at 02:24 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:2208

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          206KB

          MD5

          f23fb36750d1809dad6d9129461feef3

          SHA1

          45d3a6f7c1b3353152ffbca7b041b263213e2947

          SHA256

          11f703d9b2b3437ff2a0c9188c453ea4fd147f92ddd6944d1472ba382cbb966f

          SHA512

          73936a297fac55ca81149f8300de979af3d76d4d668daf1388b99088b22384637395cf80914b0e27881324c788fff351d38c1ec4f1eb632534c4e2183798d2cc

        • \Windows\system\explorer.exe

          Filesize

          206KB

          MD5

          90ce4bca841760c918e9795df602faa8

          SHA1

          65ada5c6596d1d8909e42d94f690c8f2f7db4de0

          SHA256

          2ad3afd922b663f5b7269e9425496304000f451db1ea6dc580760396533e5771

          SHA512

          550ec609ac958f341f7c31cfb860df26b0914c0844612e0236849941f53aa08a53515124f99e2abeaebaba55e1bcfeb9c0a16592c891fd73fb31ccd638469272

        • \Windows\system\spoolsv.exe

          Filesize

          207KB

          MD5

          677b2a204a8253d30f38c8d75968b64d

          SHA1

          3b8ca85577d31cd1dabf14590d24ec7e7495d7d4

          SHA256

          bfff25cf71030714aece8058e03e585d684462e5f45c6c92d001b207359b6b19

          SHA512

          9fbc5c6fb3c0c783c5cca9449f319ddc7d9386d8fd11779449dbeb022722bac6df11a21b069330feb69516d46cd0e2abdcf7c968a3e8fcca3a0362b6378fc7cb

        • \Windows\system\svchost.exe

          Filesize

          206KB

          MD5

          d8a9f332f588bef0ea088f8869966c1c

          SHA1

          c724e033fb45740b37c32562f756b2c27d90b073

          SHA256

          977e0882cf19560caf1675608c6cf86979e2ddaa865c9bc62f6d03e7017eaf92

          SHA512

          889e4948d78f4613cc1df5a8c3d3347663b0ffc0be8ea8a587ffdf07ff70cb66cab2caca14ee483f392833af7751b6daa6a8316bfdff79731bb93c6864d5276c

        • memory/1688-0-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/1688-8-0x00000000026E0000-0x0000000002720000-memory.dmp

          Filesize

          256KB

        • memory/1688-56-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2708-27-0x00000000025F0000-0x0000000002630000-memory.dmp

          Filesize

          256KB

        • memory/2708-26-0x00000000025F0000-0x0000000002630000-memory.dmp

          Filesize

          256KB

        • memory/2720-55-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2860-52-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB