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Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 14:51

General

  • Target

    933ab605c5393352301c1033a4b88613b0c47b833b8deea695a1e750f336f071.exe

  • Size

    66KB

  • MD5

    766daa59bb63db8c6743ea35e10ee3bf

  • SHA1

    73e4b640c09ea9a74604422b6524f9cada87465d

  • SHA256

    933ab605c5393352301c1033a4b88613b0c47b833b8deea695a1e750f336f071

  • SHA512

    86952fe8682bec94f5db178c4a5ebf294ac14ae4da28f54b7fcb4b73bbd4d159a7943237776fa616b0da4d5cee9647e1f6f4ab847f0112f029e9ecdcb32cb659

  • SSDEEP

    1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXis:IeklMMYJhqezw/pXzH9is

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\933ab605c5393352301c1033a4b88613b0c47b833b8deea695a1e750f336f071.exe
    "C:\Users\Admin\AppData\Local\Temp\933ab605c5393352301c1033a4b88613b0c47b833b8deea695a1e750f336f071.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1784
    • \??\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:2492
      • \??\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:2524
        • \??\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:2428
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2476
          • C:\Windows\SysWOW64\at.exe
            at 14:53 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:760
            • C:\Windows\SysWOW64\at.exe
              at 14:54 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:1448
              • C:\Windows\SysWOW64\at.exe
                at 14:55 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:2272

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          66KB

          MD5

          47568b7da935ff63c835102e4ef5ca06

          SHA1

          b972e1f2e61ee08ca33d475b54c00a572b4bf7bd

          SHA256

          6e56e256f61a99553fb98af17d13c2f9566a0795bde803ac3595efd0ea8ee628

          SHA512

          6b8092832435737d0f3a83ef011806d40e4ec4d14dda75646438de994fea496fcf9ffae1caec37484fad4845ec6b00729063e3bb5045e48ad87af7592d82491b

        • \Windows\system\explorer.exe

          Filesize

          66KB

          MD5

          4b98ae4c246be900490850e70072dac1

          SHA1

          0de5251c324ffdfe680ffcf22332a957cec09a19

          SHA256

          ab97b41eacb0c56a6f4f7ef8dc3f5ae9586ffde463f8aa9c1ac915bf812e08a9

          SHA512

          7e7fb33e0f19403b2969645c7995437ac2716eab6644b651ee9bf63f48517516a7cba2e967e8ecdedee9354097e06d6a9513c19a77227b8cd9c74c2c92ad1fd0

        • \Windows\system\spoolsv.exe

          Filesize

          66KB

          MD5

          32a5603b9a7a98a6d199167cf4702f1e

          SHA1

          951ad98fbc181ced8df7c691db7430e376eac44d

          SHA256

          eff572585568c08f77996c546843cdbc5263a16c0859812d1a34589f8bcbf06d

          SHA512

          41ba25449a9de161a9ab49e392a06afa4bc13197ef54a9cc95599dcb4296e9d34d7bc02e73548eb12c899d1cd05f9b5a460bdc2e6230b0338cca51894c6f3682

        • \Windows\system\svchost.exe

          Filesize

          66KB

          MD5

          ab811bf7d8f35442921e8788af99a08e

          SHA1

          059756a1ac95d097dab437346e7f88c49ce944f2

          SHA256

          8811e9bc4971fd9d440dd12d1a13b84a37c68e44245fa05eff6b267e18a854c7

          SHA512

          7d56738dda2aaa2b6ece6341d916fe0f7d57c4a997df771942cc8616db82b89213ec4ecd258a4feef52d05f8a10afb8b63e24be1fca381a2c9065809b1c82b29

        • memory/1784-83-0x0000000000401000-0x000000000042E000-memory.dmp

          Filesize

          180KB

        • memory/1784-1-0x0000000000020000-0x0000000000024000-memory.dmp

          Filesize

          16KB

        • memory/1784-56-0x0000000000020000-0x0000000000024000-memory.dmp

          Filesize

          16KB

        • memory/1784-18-0x0000000002D10000-0x0000000002D41000-memory.dmp

          Filesize

          196KB

        • memory/1784-17-0x0000000002D10000-0x0000000002D41000-memory.dmp

          Filesize

          196KB

        • memory/1784-3-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/1784-58-0x0000000000401000-0x000000000042E000-memory.dmp

          Filesize

          180KB

        • memory/1784-4-0x0000000000401000-0x000000000042E000-memory.dmp

          Filesize

          180KB

        • memory/1784-82-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/1784-2-0x0000000072940000-0x0000000072A93000-memory.dmp

          Filesize

          1.3MB

        • memory/1784-0-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2428-63-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2428-59-0x0000000072940000-0x0000000072A93000-memory.dmp

          Filesize

          1.3MB

        • memory/2428-86-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2476-72-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2476-70-0x0000000072940000-0x0000000072A93000-memory.dmp

          Filesize

          1.3MB

        • memory/2476-77-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2492-68-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2492-31-0x0000000002790000-0x00000000027C1000-memory.dmp

          Filesize

          196KB

        • memory/2492-95-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2492-19-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2492-37-0x0000000002790000-0x00000000027C1000-memory.dmp

          Filesize

          196KB

        • memory/2492-85-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2492-20-0x0000000072940000-0x0000000072A93000-memory.dmp

          Filesize

          1.3MB

        • memory/2492-24-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2524-81-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2524-50-0x0000000002450000-0x0000000002481000-memory.dmp

          Filesize

          196KB

        • memory/2524-38-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2524-39-0x0000000072940000-0x0000000072A93000-memory.dmp

          Filesize

          1.3MB

        • memory/2524-43-0x0000000000400000-0x0000000000431000-memory.dmp

          Filesize

          196KB

        • memory/2524-57-0x0000000002450000-0x0000000002481000-memory.dmp

          Filesize

          196KB