Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 04:29

General

  • Target
    e4eefac44edfa932cfcdca830a12aa391563dfdf795dda8acdd7e2de28590fa7.exe
  • Size 1.4MB
  • Sample240601-e4nrzsae64
  • SHA256 e4eefac44edfa932cfcdca830a12aa391563dfdf795dda8acdd7e2de28590fa7
  • MD5 SHA1 SHA512 SSDEEP
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
  • Detects executables packed with Enigma 24 IoCs
  • Detects packed executables observed in Molerats 24 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 36 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 17 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4eefac44edfa932cfcdca830a12aa391563dfdf795dda8acdd7e2de28590fa7.exe
    "C:\Users\Admin\AppData\Local\Temp\e4eefac44edfa932cfcdca830a12aa391563dfdf795dda8acdd7e2de28590fa7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1776
    • \??\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
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2356
      • \??\c:\windows\system\spoolsv.exe
        c:\windows\system\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1568
        • \??\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
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1760
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:784
          • C:\Windows\SysWOW64\at.exe
            at 04:32 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:656
            • C:\Windows\SysWOW64\at.exe
              at 04:33 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:2864
              • C:\Windows\SysWOW64\at.exe
                at 04:34 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:980

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              mrsys.exe

              • Path C:\Users\Admin\AppData\Roaming\mrsys.exe
              • Size 1.4MB
              • SHA256 d90375d0acd4f3e5d3746d00fa42c2ff60596daed8755851dea35882452555ad
              • MD5 SHA1 SHA512 SSDEEP

              explorer.exe

              • Path \Windows\system\explorer.exe
              • Size 1.4MB
              • SHA256 72ed88b3b3f67e332b5ac742346c529143e97f1d3e2eec68c0f2548cd1734000
              • MD5 SHA1 SHA512 SSDEEP

              spoolsv.exe

              • Path \Windows\system\spoolsv.exe
              • Size 1.4MB
              • SHA256 2090416afc0aa8e412227c05dc2f7b4509dfbdcdcc8c8df930095d8850a468bb
              • MD5 SHA1 SHA512 SSDEEP

              svchost.exe

              • Path \Windows\system\svchost.exe
              • Size 1.4MB
              • SHA256 cf0c22caf23235b67e2aa9b9e6e27d91ee6dce561de4e9a05b60c1a27d65668b
              • MD5 SHA1 SHA512 SSDEEP

              memory/784-76-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/784-62-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1568-66-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1568-47-0x0000000003F90000-0x0000000004530000-memory.dmp

              memory/1568-48-0x0000000003F90000-0x0000000004530000-memory.dmp

              memory/1568-36-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-60-0x0000000004050000-0x00000000045F0000-memory.dmp

              memory/1760-88-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-49-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-72-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-56-0x0000000004050000-0x00000000045F0000-memory.dmp

              memory/1760-96-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-98-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1760-86-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1776-61-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1776-68-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/1776-1-0x0000000077EA0000-0x0000000077EA1000-memory.dmp

              memory/1776-16-0x00000000042F0000-0x0000000004890000-memory.dmp

              memory/1776-15-0x00000000042F0000-0x0000000004890000-memory.dmp

              memory/1776-0-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-32-0x0000000004490000-0x0000000004A30000-memory.dmp

              memory/2356-73-0x0000000004490000-0x0000000004A30000-memory.dmp

              memory/2356-77-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-85-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-71-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-87-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-70-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-89-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-31-0x0000000004490000-0x0000000004A30000-memory.dmp

              memory/2356-97-0x0000000000400000-0x00000000009A0000-memory.dmp

              memory/2356-17-0x0000000000400000-0x00000000009A0000-memory.dmp